NEHA Registered Environmental Health Specialist/Registered Sanitarian (REHS/RS) Practice Exam – All Questions

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Plain sedimentation: natural gravity settling in water bodies without chemical aidThe quiescent settling of water in reservoirs or lakes without the aid of chemicals is known as what?Understanding how microorganisms break down organic matter in wastewater treatmentIn wastewater treatment, which process uses microorganisms to break down organic matter?Which building material is safest for exposure to radioactive minerals, and why wood tops the list?From the standpoint of exposure to radioactive minerals, which building material would probably be the most "safe"?

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Does the nature of all radiation differ only in frequency and wavelength?
Lakes that are clean, high in dissolved oxygen, deep, and receiving few nutrients are classified as?
What is the function of a biosafety cabinet in a laboratory setting?
Which of the following is NOT a factor that influences chlorine disinfection efficacy?
Which population group has raised the greatest concerns regarding exposure to asbestos fibers?
What are the federal air quality standards for sulfur oxides in parts per million?
Which category accounts for the majority of the world's water use?
The primary focus of environmental health specialists in community planning is to?
What hazard is primarily posed by an etiological agent?
Is it necessary to expose the gonads to cause genetic effects from ionizing radiation?
What is the primary function of filtration in therapy units?
What is the minimum wash time required for a single-tank conveyor dishwashing machine?
A negative pressure fit test for a protective mask is conducted by which method?
What is a common result of footer failures?
What type of contaminants might be found in unchlorinated water supplies?
Which of the following diseases is caused by mites?
What is the greatest potential means of reducing water demand?
What is one purpose of public information and community action?
Which bacterial group indicates fecal contamination or sewage pollution?
Which agency is tasked with evaluating environmental quality in relation to national policies?
What can result from the bioaccumulation of PCBs in aquatic food webs?
What chemical is used to dechlorinate water samples that have been chlorinated?
Which of the following is an important component of a sanitary survey for water systems?
Which method is commonly used to protect against ionizing radiation in work environments?
For which condition has no definitive causative link with asbestos been established?
One of the ways to recognize a well designed and properly operated pool is when you find the water at the time of inspection to be
What is the half-life of Carbon 14?
The process of reducing disability or dependence resulting from a disease is referred to as:
Which environmental concern is associated with human activities like deforestation?
What is the most effective method for running a percolation test?
Why can administrative hearings be beneficial?
At what concentration can hydrogen sulfide be fatal upon exposure?
What is the risk associated with excessive exposure to poor air quality?
Which of the following is NOT a condition that encourages weed growth?
What is a common effect of noise pollution on human health?
Which term is used to indicate exposure of large populations to low levels of radiation?
How is the term contamination defined in connection with a communicable disease?
What typically determines the well location in a subdivision lot?
Outbreaks of ______ traced to contaminated shellfish between 1900 and 1925 led to the PHS Certification of dealers involved in interstate shipment?
Chlorination of untreated wastewater is typically NOT effective for which of the following?
When controlling houseflies, roaches, and rats, what should the primary emphasis be on?
Residents of which of the following cities would probably receive the most cosmic radiation?
Which of the following diseases is commonly transmitted through the fecal/oral route?
The wastewater from a toilet or latrine flushing is referred to as
Radon in a home is detected through the measurement of which particles?
What type of exposure is primarily a risk for acquiring the B-virus?
Can particulates larger than 10 microns penetrate easily into the respiratory tract?
Which pollutant is considered most hazardous to individuals with pre-existing heart conditions?
What primary atmospheric condition affects the concentration and distribution of air pollutants?
Radiation can scatter and bounce off of which surfaces?
What is the Ringlemann chart method primarily used for?
The wastewater generated from washing out refuse bins and containers must adhere to which requirement?
The US site considered for the nation's first permanent repository for nuclear waste is located in:
How should chlorine levels be maintained in swimming pool water?
At what concentration can hydrogen sulfide be fatal?
Which one of the following is the greatest genetic concern in terms of exposure to ionizing radiation?
If time only is used as a public health control, what is the maximum period of time recommended by the FDA for time/temperature control for safety food to be held?
Which pollutants are examples of short-range primary pollutants?
What factors influence the proper disinfection of water using chlorine?
Which of the following is NOT suggested as a reason for excess exposure to X-rays for Americans?
The primary route of entry of PCBs into humans is:
What is the recommended slope for floors in food processing plants toward drains?
Which of the following chemicals is used to measure water quality?
Which of the following factors contributes to water hardness?
The addition of sodium bicarbonate will
Individuals assigned to regulatory programs should be?
What is the major source of lead exposure among adults?
True or False: Everyone is immune to effects from natural background radiation.
Which health issue may arise from environmental exposure to asbestos?
Which material is mostly organic and often found in wetland areas?
Beta particles can be a health hazard either as internal or external radiation due to ionization in tissues. Is this statement true or false?
The National Safety Council reported that solid waste collection workers have an injury frequency approximately how many times the national average for all industries?
What factor primarily influences the effectiveness of wastewater treatment systems?
What does the Maximum Contaminant Level (MCL) represent?
A treatment for lead exposure that involves administering a drug that binds to lead and facilitates its excretion from the body is called:
Shredded tires can be used as what type of resource?
How are tuberculosis risks quantified in laboratory settings?
What is the purpose of using chemical disinfectants in water treatment?
How many days will it take to thaw a 16-pound turkey at 40°F?
What type of air pollution is known to cause loss of chlorophyll in plants?
Which one of the following was not initially associated with PCBs?
Which of the following areas is the least radiosensitive?
Which of the following waste management practices is designed to minimize waste generation?
Which area of the United States is projected to be most heavily affected by stricter air quality regulations?
Shucked shellfish must be stored at what temperature or less?
When the whole body is irradiated, what area(s) is (are) considered the most radiosensitive?
Which method is NOT effective for preventing the spread of bacteria in food service?
It is estimated that what fraction of water and foodborne diseases are actually reported?
Which of the following would not be as likely to be contracted bathing at a beach?
What is the primary characteristic that makes an isotope radioactive?
Any excavation in clay, loam, silt, or sand deeper than how many feet should have side wall protection?
Which of the following is not a sign of bad fish?
What is the primary purpose of implementing natural and source-reduction measures for pest control?
Trickling filters can remove 90 to 95 percent of what contaminants found in soil, water, and wastewater?
Wastewater from a water closet is categorized as:
Eastern equine encephalitis is classified as what type of disease?
Approximately how many Americans have experienced full or partial hearing loss due to excessive noise exposure?
The disease that is commonly associated with stone age spearhead markers and sand blast operators is:
What type of pollution would street dust be classified as?
Hazardous waste is governed by which legislative act?
What is the primary source of air pollution in the United States?
The prime feeding time of the Anopheles mosquito is usually around midday.
Perhaps the most difficult of the pollutants to control is:
Which gas poses the greatest challenge for elimination of its use?
What is crucial for effective cockroach control?
Backsiphonage is likely to result if:
What may legal proceedings to enforce a law include?
Some studies indicate that swimmers have a higher over-all illness rate than non-swimmers:
How frequently should a septic tank in a private home typically be serviced?
Objectionable tastes and odors in public water supplies are primarily due to the presence of?
Which of the following products is not a traditional formaldehyde air pollution source?
Which substances are categorized as hazardous wastes?
Which of the following aspects should be taken into consideration when managing household hazardous waste?
Of the following, which is classified as a compound?
Some common pathogenic organisms found in wastewater can survive harsh temperature extremes for more than how long?
A water or foodborne disease outbreak with a short incubation period is likely caused by which of the following?
What percentage of total pool water should ideally be directed to the gutters or skimmers due to the presence of organisms and materials?
According to the Council on Environmental Quality, who is required to submit an Environmental Quality Report to Congress?
Which organization is usually involved in dealing with major disasters?
Which one of the following metals is most fatal to fish when it becomes dissolved in acid waters?
Which factor is most critical in protecting groundwater from contamination?
When it is not possible to collect and examine a large number of samples for bacteria examinations, an indication of the sanitary condition of the milk can be obtained by:
The poison found in poison ivy, oak, and sumac is extremely volatile. What is the correct answer?
Which environmental factor contributes primarily to the incidence of smog formation?
The Muerto Canyon virus primarily affects which organ in humans?
Which one of the following radiations is most penetrating?
What type of pollutants can be effectively removed using ion exchange methods in drinking water treatment?
Which nutrient is commonly associated with the process of eutrophication?
Is exposure to radiation categorized as acceptable in all medical applications?
From a legal standpoint, which standard is easier to enforce?
Sodium fluoroacetate, also known as "1080," is the most effective fast-acting rodenticide available for use throughout the United States.
What are frequent causes of disease resulting from cross-connections?
Loam is composed of which of the following?
What is the main function of a sound barrier in noise control?
Hazardous wastes may be in a ______ form.
What is the main concern regarding children and lead poisoning?
The ban on chlorofluorocarbons was not specifically aimed at which of the following groups?
What does plan implementation require?
What is the ideal temperature for pasteurization of milk with an increased fat content?
When treating water with chlorine in emergency situations, the chlorine dosage should be adjusted how when water is turbid or colored?
Which temperature range is considered the "danger zone" for bacterial growth in food?
According to Food Additive Regulations, how is a pesticide added to processed food categorized?
In sandy soil, how far can sewage organisms typically travel?
What factor contributed to lower fallout levels from the Chernobyl disaster than expected?
What describes the relationship between local and state governments regarding environmental health?
An operating free chlorine residual of ______ is usually required in practice.
The first step in implementing a biosafety program begins with what process?
The exposure of excreta or sewage on the ground surface is associated with disease transmission via which method?
Which of the following is NOT a form of alkalinity?
What is a false statement concerning sewage and disease hazards?
Under which department does the CFR Part 1910 of Title 29 "Bloodborne Pathogens" fall?
Continuous exposure to high-level noise is less harmful than what type of exposure?
What is a common issue associated with the malfunction of fluoroscopy equipment?
If a laboratory reports a positive coliform test on pasteurized milk, what does this indicate?
The Greenhouse Effect is intensified by increases in all the following gases except?
Which type of cancer is considered a classic example of X-ray induced malignancy?
Currently, which of the following is the largest source of methane emissions?
According to the APHA appraisal method, what is the minimum required sleeping area per person?
What is the minimum number of men needed to supervise a landfill site, based on a rate of waste dumped per day?
Which one of the following areas of the United States would be most sensitive to acid precipitation?
Which gases commonly found in water can encourage corrosion?
What might happen if a septic tank is pumped during a wet period?
In public health planning, what is a critical step in assessing the potential impact of a project?
What process is typically used to remove hardness from water?
Quality control of milk includes which of the following components?
The presence of which element in water treatment plant effluent serves as a measure of filtration efficiency?
Standards designed to promote human welfare by protecting agriculture crops, livestock, property and the environment in general are called:
What type of systems are most suitable for the destruction of organic compounds?
What does the abbreviation "rem" stand for?
Psittacosis/Ornithosis is primarily spread by which type of animal?
What type of radiation do lasers emit?
A joist is used:
In an industrial environment, what provides a key part of sanitation in food processing?
What is the primary concern with using wetlands for landfilling?
Leaching from a garbage dump has been found to pollute wells located how far away?
A vaccinated pet exposed to a rabid animal should be confined for how long or destroyed?
What type of hearing loss is a result of infections or trauma?
What does "ground radiation" refer to?
Which waste material is NOT classified as California list waste that is banned from land disposal?
According to the EPA, what percentage of the waste stream can be recovered economically?
A well casing should be equipped with a vent and installed using which of the following methods?
The preferred treatment for algae control is:
For pools less than 30 feet wide with a surface area less than 1600 ft2, what is true regarding skimmers and gutters?
What is the maximum accumulated time that time/temperature control for safety food can safely be exposed to the temperature danger zone?
Which characteristic of PCBs contributes to their status as an environmental and health hazard?
What term best describes an outbreak affecting a larger geographic area than expected?
Which of the following is not known as a harmful effect of lead in the human body?
What is the function of a footing drain?
What purpose do local sewage and waste ordinances serve?
An agency's general administrative plan provides the basis for?
What compound is produced when hydrocarbons are burned?
The approved method of disposing of PCBs is:
Which act provided the federal government authority to address interstate air pollution problems?
Is radon an alpha emitter with daughter decay products that include alpha, beta, and gamma emitters?
Domestic community water system pumps should deliver average daily water demand to storage tanks within what time frame?
Muriatic acid is a weak solution of:
Ozone is effective against
The majority of sulfur dioxide originates from:
Which of the following best describes the consequences of exposure to genetic radiation?
A major problem associated with cadmium poisoning is:
What is a potential hazard associated with neutron radiation?
According to the National Environmental Policy Act (NEPA) of 1969, which responsibility does the Federal Government have?
What are the three kinds of weeds generally recognized?
Which of the following is most easily identified by laboratory analysis in water contaminated by feces?
Which method can be adjusted to control the furnace temperature and burning rates of an incinerator?
What is a key maintenance requirement for a pipeline milker?
What is necessary for a pure tone to be produced?
Quantitative risk assessments usually measure human exposure through all of the following except:
E. coli 0157:H7 is often spread by which of the following methods?
Trihalomethanes are synthetic organic chemicals primarily created
What conditions seem to facilitate the proliferation of dust mites?
What is "swimmers itch" also known as?
What term describes the measure of the probability and severity of adverse effects under specific conditions?
Which organization developed guidelines to assist urban areas in assessing the impacts of development actions?
What is the primary purpose of proper household hazardous waste management?
Is funding for the collection, storage, and disposal of household hazardous waste always provided by the individuals who generate the waste?
Direct filtration can produce good quality water at a lower cost if the water being treated is?
What are the primary contaminants found in swimming pools?
Maximum sensitivity to sound for humans is in the range of:
Which substance is commonly used as a coagulant in water treatment?
Which group of organisms are prime sources of Giardia lamblia cysts?
What is the preferred method for providing water and sewage services to a new subdivision?
A gravity flow absorption field must have materials not exceeding which maximum length?
Black flies are known to be disease vectors for which condition?
Why is strong emphasis placed on the control of shellfish?
In pool maintenance, what is considered the ideal time frame for water filtration?
A watertight tank designed to slow down the movement of raw sewage and wastes is known as a?
At what level of nitrogen dioxide concentration does it generally not pose a health problem?
Which regulation requires the development and maintenance of an exposure control plan?
What is the primary purpose of the medical surveillance program in a written safety and health program?
Which method is satisfactory for disinfecting water that is not grossly polluted?
What is defined as an illness due to a specific infectious agent or its toxic product transmitted from a reservoir to a susceptible host?
Which federal agency is responsible for regulating hazardous waste treatment, storage, and disposal (TSD) facilities?
What is the measure of the amount of water held by a rock or soil in pores or voids, expressed as a percentage of total volume?
What skin disease is caused by the burrowing of a mite into the skin?
Which regulation is typically associated with workplace noise exposure guidelines?
What is not included in the process of comprehensive community planning?
Which health risk is associated with lead exposure in children?
Which of the following is not a method of cross-connection control?
Man-made organic compounds that degrade very slowly are known as?
What is required to ensure the effectiveness of landfill covers?
Which of the following is not a characteristic of hazardous waste according to the EPA?
What is the most effective measure for mosquito control?
What can be formed as a result of the sun's action on nitrogen oxides and hydrocarbons?
Which disease is not related to rodents in its transmission to humans?
Which regulatory body is primarily responsible for establishing noise control measures in the workplace?
In domestic water well supplies, which two elements cause the majority of hardness?
Dairy equipment can be disinfected with a chlorine solution of what concentration?
What is the first step in assessing the safety of a potential water system?
What type of inversion develops during the night with clear skies and light winds?
The assessment of stakeholders' values, interests, and expectations is used primarily for what purpose?
How often should biological safety cabinets be performance tested?
The most prudent way to safeguard public health concerning ionizing radiation is to:
What is true regarding the disposal of equipment containing PCBs?
What is the major problem associated with the desalination of water?
Which of the following is not included in hazardous waste regulations?
What is the best approach to take for a pigeon control program aimed at eliminating nesting places?
Which of the following measures can reduce the impact of highway noise?
How many pints of water does a person need daily to maintain bodily functions?
What is the function of daily cover in a landfill?
What is the purpose of conducting air monitoring at hazardous waste sites?
What kind of application is generally restricted to trained professionals?
What is the historical significance of the Montreal Protocol?
Which population is more susceptible to respiratory diseases?
Which one of the following is not a potential impact of global warming?
Homes containing garbage disposals should have a septic tank capacity increased by what percentage to accommodate increased organic loading?
Which of the following is true about ionizing radiation?
Additional fuel is required to incinerate refuse that contains what percentage of moisture?
Another name for a mature or balanced lake is?
Which of the following is a common way to control pests in urban environments?
What pH level can cause eye irritation in swimming pool water?
Which material is commonly effective at eliminating beta radiation?
What are the major potential entry sources of radon in a home?
Which of the following is not commonly used to disinfect water?
Which organization is responsible for public health in the United States, including food safety?
What is a characteristic of all mobile home occupants?
Which one of the following would probably be most cost effective in the prevention of lead poisoning of children?
What is a correct statement regarding septic tanks?
There is no need for vaccination after flooding and other natural disasters concerning which disease?
What should food service workers do to prevent cross-contamination?
Which of the following can lead to cloudy water in spas?
How long can some pathogenic organisms survive in heat to freezing moist soil?
Mosquitoes are responsible for all except?
A major worry associated with prolonged, low-level PCB exposure is:
Which method for eliminating pests does not focus on chemicals but on environmental conditions?
Are lead shielding devices necessary for chest or upright x-rays?
Rocky Mountain spotted fever is primarily spread by which vector?
For a pesticide to be applied on raw agricultural food, the residue must be below what tolerance?
Letter and report writing are effective means of informing whom about a facility's problems?
If 10 decibels is 10 times more intense than one decibel, how many times more intense is 20 decibels than one decibel?
When a business authority refuses consent to an inspection, what is the most appropriate action to take?
What aspect of CFCs is responsible for their widespread use?
What is essential for retaining competent personnel in environmental control services?
How much sewage do residential cesspool and septic tank soil absorption systems discharge into the ground each year?
Which product would probably have the lowest reclamation value?
The recommended backfill depth over the absorption field is?
What regulatory action is often taken to manage and mitigate PCB contamination?
Which factor is considered to have the most impact on a child's reading skills?
Which disease is not typically transmitted by insects?
Which of the following is not a form of direct pest control?
The traditional absorption field should be laid in trenches not more than how deep below the ground surface?
Which term is used to describe the exposure of large populations to ionizing radiation?
The causative agent Naegleria fowleri has been linked to which of the following diseases?
The regulatory level for benzene under the RCRA Toxicity Characteristic rule is?
All of the following describe objectives used in environmental quality planning except?
The goal of environmental health programs should be?
The presence of bacteria responsible for typhoid fever in a public water supply could be traced to?
Which process is critical for managing the environmental impact of solid wastes?
Thermoduric bacteria grow best at a temperature range of:
Stream pollution can often be indicated by which of the following?
What is the effect of radiation absorbed by the patient when using filters?
What is the most hazardous category of nuclear emergency?
Which chemical used for water disinfection does not leave a residual?
At what temperature and for how long does a sweetened milk product need to be pasteurized?
Which condition is conducive to the successful operation of a septic system?
What type of energy do microwave ovens with magnetron tubes generate?
Which of the following options correctly describes the disposal of oil?
Who discovered X-rays?
Which filtration method is typically used for its efficiency in small rural water systems?
What is the most comprehensive method for controlling noise?
Lead poisoning is most commonly associated with children living in homes built before which year?
Which of the following is NOT commonly used to disinfect water?
Which of the following is a known source of PCB contamination in the environment?
What is the term for a constant buzzing or ringing in the ears?
The length of exposure during radiation procedures can be affected by what variable?
Slight, irreversible hearing loss may result for many people, from daily exposure over an 8 hour period of time to sound averaging:
General overall policy planning excludes which of the following components?
An "environmental assessment" developed under NEPA is best described as?
Shredding solid waste typically reduces the volume to about what percentage of the original bulk?
Which component of a septic system is responsible for further treatment of effluent after leaving the tank?
Which of the following is a common challenge in solid waste management?
In which area is saltwater intrusion into depleted aquifers becoming a significant issue?
What tool is commonly used to measure sound levels in the environment?
Which soil is most suitable for cover material at a landfill site?
What is one common type of ionizing radiation?
Which of the following agents is a common precursor to acid rain?
What was the clinic utilization rate for diarrhea among migrant farm workers without access to water and sanitation facilities?
The gas causing the distinct "rotten egg" odor in many water sources is
Why are some foods classified as time/temperature control for safety?
What is the main environmental concern associated with high motor vehicle traffic?
The most likely cause of photochemical smog is due to:
What is a common preventive measure against communicable diseases?
What type of sunscreens are considered to be the best?
Centrifugal pumps vary based on the design of what component?
Is a sampling train used to measure emissions from locomotives?
Which regulations must containers used in site clean-up operations comply with?
Toxicity is determined by a laboratory procedure called the?
Which of the following materials is known to reflect sound?
Which pest is known for being a mechanical vector of disease?
A relatively porous landfill earth cover allows for which of the following?
What does a properly managed waste collection service aim to achieve?
Which of these methods is often used to reduce the volume of waste in landfills?
Nearly 25% of global carbon dioxide emissions are attributed to which of the following?
Common refrigerants include which of the following?
The gases frequently found in water that encourage corrosion are
The Overseas Development Council’s Physical Quality of Life Index includes which of the following assessments?
The amount of time required to produce permanent damage to hearing is cut in half with an increase in sound of:
Heating of air, gas, or gas mixture up to 9032 degrees F for the thermal destruction of hazardous wastes describes a process called:
Celery has shown to be acceptable when it is?
What is the term for protecting personnel and the laboratory environment from infectious agents?
What is the primary mode of transmission for viral hepatitis B?
Which one of the following statements is false regarding microwaves?
Which chemical has been deemed most effective for controlling ragweed?
What is considered the most significant long-term effect of dioxin exposure?
What action should be taken after a project becomes an ongoing program?
What does the National Sanitation Foundation (NSF) focus on in its standards?
What must be known before investigating a suitable site for a facility?
What disease should a healthy milk herd be free from?
Where should resource recovery and reduction of solid wastes ideally begin?
Muerto Canyon virus (MCV) is primarily carried by which animal?
Which of the following is considered an unacceptable use of radiation?
The roentgen measures ionization in air caused by exposure to which of the following?
Stack samples must be collected at what condition relative to the flow of gases through the stack?
What should not be done with food samples collected during a foodborne illness investigation?
Immune system interference from dioxin exposure has not been demonstrated in which of the following?
Feeding uncooked garbage to hogs can increase the risk of which of the following?
The energy of ionizing radiation is measured in which of the following?
What indicates that a septic tank is in need of cleaning?
How does the acidity-alkalinity balance affect pool water?
What is required regarding Hepatitis B vaccinations for employees in contamination risk jobs?
What should be done to prevent radon infiltration in buildings?
Prior to 2008, when was the last time new nuclear reactors were ordered by US utility companies?
When aerobic synthesis occurs in a landfill, what stage of decomposition is the refuse expected to be in?
What can be recovered from refuse by burning it in a refractory lined incinerator?
On average, how much air do humans breathe in a day?
Is it unnecessary for a dental unit to have filters?
The Consumer Product Safety Commission requires refuse bins to withstand a horizontal force of how many pounds?
Which substance is known to be non-toxic to aquatic organisms and acts as a good viricide?
What factor most significantly influences the quality of local water supplies?
What is the recommended backwash rate for high rate sand filters?
How might global warming affect crop yields in the long run?
Microwave ovens primarily operate using which type of energy?
The conversion of seawater or brackish water to fresh water is known as?
Which is not considered a single dose rodenticide?
The presumptive evidence of the presence of coliform in the MPN test is:
Which type of bacteria is commonly used as an indicator organism for water quality testing?
What are the three essentials for combustion in an incinerator?
Which of the following shellfish are most likely to cause illness?
What is the best assurance of satisfactory operation of a properly designed and constructed septic tank system?
Which information should NOT be included in an environmental impact statement?
Which of the following is not commonly used as a fumigant?
Endemic typhus is primarily transmitted by which vector?
Domestic wastewater which passes through a sewer system to a POTW is not considered to be a:
The tissues most often damaged as a result of inorganic mercury entering the body include all of the following except:
Proper facility lighting is essential for which aspect?
The pollutant that would most likely cause the most damage to the nervous system would be:
In which region of the atmosphere does the temperature slowly rise with increases in altitude?
Which of the following is vital for assessing a water supply source's safety?
A common method to assess indoor air quality is through measurements of which type of pollutants?
A vehicle built on a chassis and having a body of not more than 8-feet wide and 32-feet long designed for travel, recreation, and vacation use is
Which element is often monitored in drinking water to assess the contamination from agricultural runoff?
Which component typically contributes the most to the costs associated with solid waste management?
The government organization that usually deals with major disasters is the
What is the common method for sanitizing milking equipment to ensure safety?
What is one advantage of using cyanuric acid in pools?
Which of the following is an example of a factor that affects sound propagation?
To provide enough refuse for an incinerator to continuously operate, a refuse storage pit/bin must hold approximately how many days of refuse?
Is a QOL index useful in predicting future demands on water supplies in subdivisions?
Which chemical is commonly used to improve water clarity?
What should an inspector primarily rely on when documenting evidence during an investigation?
Pasteurization of milk products does not eliminate which of the following?
Rattus norvegicus is commonly known by which of the following names?
What key design factor should be considered for public pools?
Asbestos is uniquely known to cause which of the following diseases?
Occupational risk of lead poisoning is most significant among which professionals?
Which international agreement marked a significant step towards protecting the ozone layer?
The treatment system of a pool is typically recommended to be installed in which of the following flow arrangements?
What does a high JTU indicate about a body of water?
Which organisms are most resistant to unfavorable environmental conditions and indicate past or possibly intermittent pollution?
What is the term used to describe the manner in which water moves and changes form?
What should the grate of the main drain's area be compared to the area of the discharge pipe?
Which one of the following, given present conditions, would probably produce the best results in terms of alleviating health damage from childhood exposure to lead?
Which two insect parasites of rodents transmit disease to humans?
Those who work on uncontrolled hazardous waste sites are required to receive a minimum of how many hours of training?
Which statement is most correct regarding facultative bacteria?
How long does it take for lice to starve in infested items when not in use?
Which gas, commonly found in sewers, is not considered explosive?
What is one method to reduce the level of fluorides in drinking water?
What is perhaps the most important determinant of the cancer-causing potential of asbestos?
Is it true or false that exposure to all ionizing radiation is controlled solely by the use of lead shields?
What is the best preventive measure for poison ivy, poison oak, and poison sumac?
What is the major constituent of the atmosphere today?
In the United States, what is the status of dumping garbage and other refuse at sea?
The housefly consumes only liquids and must transform other substances to liquid before digestion. Is this statement true or false?
What percentage of bacteria can primary sedimentation remove from soil, water, and wastewater?
The first major recorded episode of air pollution that produced human casualties occurred in:
What portal of entry should a field sanitarian protect to avoid contracting Lyme disease?
Which of the following is not typically associated with the problems of septic systems?
Gamma rays come from the nucleus of an atom; x-rays come from the electrons around the nucleus. Is this statement true or false?
The Clean Air Act Amendments of 1990 did all of the following except:
Lice are known to require what to survive?
Which of the following rocks does not belong to the sedimentary classification?
In child day care centers, what is the most frequent route of disease transmission?
The accumulation of a continuously emitted pollutant is inversely proportional to what factor?
Bacteria can travel in the digestive system of a housefly for how many weeks?
Xeriscape landscaping involves what type of plant selection?
The primary health problems of developing countries are?
What is the term for a comprehensive inspection of an establishment when it is first brought under departmental control?
Which of the following would not be used as a coagulant?
What is a common method for measuring noise levels in the environment?
Which group of bacteria typically contains most of the pathogenic bacteria?
What reference would you use to determine if an infectious waste that contains viable organisms is included?
What is the optimal pH range for eye irritation control in pools?
Which of the following is not a primary consideration when locating a groundwater supply?
What is the FDA action level for aflatoxins in milk shipped in interstate commerce?
After milk is pasteurized, it should be rapidly cooled to below what temperature?
Which of the following is a common deficiency regarding therapy units?
At what parts per million of sulfur oxide is community air quality classified as moderate?
Which substance has been known to cause crippling skeletal damage to cattle?
The consumer product most significant in terms of radiation exposure is:
What is the maximum bottom slope allowed for multiple-use pools with a depth less than 5.5 feet?
The major source of mercury emissions into the atmosphere is from:
What is essential for the operation of all public pools?
What is a common indicator of a potential tick problem in an environment?
True or false: The recommended depth of septic tanks and the ratio of width to length are very similar among most health departments.
Loss of hearing that distorts or prevents low frequency sounds from being heard is categorized as:
Which one of the following is least likely to be occupationally exposed to mercury vapors?
Which material is unsuitable for the disposal of sewage by subsurface means?
In case of disasters, the speed with which action may be implemented is dependent upon:
Air pollutants may be in the form of microorganisms. This statement is:
Does the United States Environmental Protection Agency have sole responsibility for implementing "The Noise Control Act of 1971"?
Which one of the following statements is true?
The greatest number of casualties as the result of air pollution occurred in:
Another name for Epsom salt is:
Items such as tennis balls, golf balls, gloves, and auto tires that come into contact with poison ivy, oak, and sumac may spread the poison as well as physical contact with the plants.
What is the purpose of disinfection or chlorination of sewage effluent?
Subdivision plans that involve individual wells and sewage disposal systems must:
Which of the following is a guideline for preparing for mass gatherings?
Which of the following pests is primarily associated with food contamination in stored products?
Which of the following is NOT a requirement for the proper removal and disposal of asbestos?
Which of the following compounds would not contribute to water hardness?
Exposure to even moderate amounts of ultraviolet radiation can be dangerous for which of the following individuals?
Some of the main sources of pollen are trees in the summer, grasses in the spring, and weeds in the winter.
Which disease has been linked to swimming pool outbreaks?
Methyl bromide is primarily used as a?
If a septic tank has a garbage disposal unit, how much should the size of the tank be increased?
Which of the following is NOT considered a primary pollutant?
Studies suggest that swimmers overall have a higher illness rate than non-swimmers due to what factor?
How are animals primarily affected by air pollutants?
Which contaminant in water is associated with methemoglobinemia?
Which of the following is a source of radiation?
What practice is essential for preventing cross-contamination in food service environments?
What is the minimum required amount of clean outside air per minute per occupant in office space where smoking is not prohibited?
A local sewage and waste ordinance is part of which framework?
What type of activity report can serve most reporting needs for statistical purposes?
Adequate highways, land-use controls, and park facilities are usually designed within the context of a ______ plan.
What can stop beta particles?
How are total suspended particles typically measured?
Which of the following diseases is not transmitted by insects?
Many states require the refrigeration of shucked shellfish at or below ______ but above 32 degrees F:
Is it true or false that ozone can be formed by the action of sunlight on nitrogen oxides and hydrocarbons?
What rodent sign most indicates a current infestation with rats?
Sandwich and salad mixtures should be placed in shallow pans at a depth not greater than ______ to accelerate the rapid cooling of the food:
Which method of backsiphonage prevention is considered least effective?
The principle of time, distance, and shielding in radiation safety is primarily meant for what purpose?
Which alternative system is often necessary in places with high-risk factors for wastewater treatment?
What term describes the process of a toxic substance being increasingly stored in body tissue?
How does the half-life of a radionuclide relate to its hazard potential?
Protective equipment such as gloves for workers in contamination risk areas must be?
Communities aiming to maintain their character without overtaxing members should consider which strategies?
What disease is most likely transmitted to restaurant customers due to rats in the food prep area?
What is a significant environmental health risk associated with cross-connections in water systems?
What is the primary requirement in designing a food service facility?
Which of the following factors helps to slow down biological activity and preserve food?
When should X-rays be used according to health principles?
The effectiveness of disinfection in wastewater treatment depends on what factors?
Regarding municipal solid waste management, what is the purpose of a waste hierarchy?
Septic systems are most effective in which type of soil?
Which component is essential for financing municipal capital improvements?
Which chemical is often monitored in swimming pools to ensure safety?
Do actual amounts of radiation exposure received vary with altitude, background, and medical practices?
What is the most effective method to prevent subdivision complications?
The measure that is used to determine the loudness of a sound is:
Which of the following is typically used at a residential sewage treatment system with a surface discharge?
The emergency plan at a nuclear electric power plant must include a means for notification of the public living within how many miles of the plant in a 15-minute period?
Household hazardous waste is regulated like any other hazardous waste.
What is a major problem associated with selecting a sunscreen based solely on SPF?
What is a common reason for the contamination of wells drilled through rock or clay?
In which type of area do most cases of groundwater pollution occur?
Which of the following best describes the need for competent program direction?
What is the effect of higher concentrations of pollutants in wastewater on public health?
Insecticides/pesticides may be stored in all ways except:
How is the energy of ionizing radiation measured?
What does poor soil permeability most commonly lead to in wastewater treatment?
Which of the following factors contributes to hearing loss?
In environmental planning of a rural subdivision, what basic information is crucial in determining the feasibility of individual water and sewage systems on each home site?
Which is not a measure of water turbidity?
What does a wind rose illustrate?
Perhaps our single most significant source of radiation exposure is:
What is the most common method of applying wastewater to land?
How much earth should be placed on refuse at the end of the day?
What is the EPA's stream water quality rate for fecal coliform?
What does the term “toxicity” refer to in relation to pesticides?
Which raises the pH of pool water?
Hazardous wastes generated by vehicle maintenance shops include
Are rats one of the animals most likely to carry rabies?
Which residual test for chlorine is considered least desirable?
What is the primary vector for transmitting Rocky Mountain spotted fever?
The infection reservoir for arthropod-borne viral encephalitis is generally accepted to be:
What is the recommended maximum temperature for refrigerated storage of perishables?
Which term describes a high frequency of a disease in a specific geographic area?
Which substance should never be added to septic tanks?
In the context of quality of life, which of the following refers to achieving a balance between economic factors and environmental well-being?
Which treatment method is used to reduce certain heavy metals in treated drinking water?
Which of the following is NOT considered a mode of transmission?
In an emergency, how many gallons of water should each person have per day?
A problem associated with the passage of federal air control standards was:
Effective water quality monitoring includes testing for which of the following?
For effective septic tank operation, how often should cleaning be performed?
How frequently should a pool filtration system filter the entire volume of water?
To ensure custard-filled pies are safe, to what temperature should they be cooked?
A public health official has the legal authority to take action to protect community health. This role is commonly referred to as:
What temperature should hot water be at when disinfecting rubber valves and other parts of milking equipment?
Hormone or growth regulators, also known as systematic herbicides, are typically absorbed through which part of the plant?
Which government level generally has the authority to regulate the construction of public facilities?
What is the primary purpose of comprehensive local and regional planning?
Is household hazardous waste exempt from DOT regulations when shipped to a disposal facility?
The type of filter that is recommended for small communities and rural places is which of the following?
Water containing nitrates generally indicates
If a septic tank test shows negative for hydrogen sulfide (H2S) and no odors are present, can it be safely entered without a respirator?
In urban areas, what is a common source of non-point noise pollution?
Which fissionable fuel is used in all US nuclear reactors?
Which blood-feeding insect is known to affect outdoor enthusiasts and has larvae that develop in fast-moving water?
Which respiratory device provides the best protection?
When should bat-proofing not be conducted to avoid trapping baby bats?
Which particles have little penetrating power and are a risk only through internal exposure?
Which of the following is NOT a component of the Physical Quality of Life Index?
What is the term for the reduction of disability or dependence resulting from a disease?
What is the minimum space emergency shelters should provide per person?
What is the primary reason for conducting a sanitary survey of a water system?
What must be done to effectively sanitize food contact surfaces?
Under typical operations, what primarily contributes to public exposure to ionizing radiation from nuclear power plants?
The cause of "Mad Hatters' Disease" was traced to:
Which is not an essential factor in the combustion phase of an incinerator?
Which method is typically NOT effective for controlling noise pollution?
In community evaluation, which of the following is NOT typically included?
What is the classification of radiation that can cause ionization in biological tissues?
What does glazing, silvering, or bronzing on the underside of a leaf indicate?
Which of the following actions fosters better waste management practices?
The major concern related to ultraviolet radiation within humans is primarily with:
What is a key requirement for a properly designed incinerator to effectively burn combustible refuse?
Which of the following has not been linked to slowing or halting respiratory tract cilia movement?
Under what conditions should a clean bench be considered for use?
Which of the following is a common symptom of pesticide exposure?
Concerns regarding increased carbon dioxide levels primarily impact what issue?
The best control of swimmer's itch at a bathing beach is to
Which organization regulates the control of bloodborne pathogens?
What is the best option for sanitizing food contact equipment?
What is commonly added to a pool to reduce chlorine odor?
When a body of water becomes acidified, the first aquatic species to disappear are generally:
Most ultraviolet radiation in sunlight is absorbed by which layer?
In which decade were PCBs first synthesized?
What is the main focus of an environmental review process?
A significant public concern that influenced the establishment of NEPA was?
Sewer gas may contain which of the following components?
What is the primary purpose of adding chlorine to pool water?
The strategy most often used to solve sulfur dioxide emissions in close proximity to the plant that produces the emission is:
At what temperature should milk be heated to ensure its safety in emergencies?
What property do x-rays, gamma rays, and visible light share?
According to observations, which measures are more effective for controlling cholera and typhoid?
Which of the following types of equipment is specifically designed to protect laboratory personnel?
Which statement about air quality standards is true?
Which concept emphasizes the long-term productivity of an area?
What contaminant may accompany methane production if large amounts of sulfate are also present?
Which of the following is the most effective technique for ceasing operation of a noncomplying establishment?
Which geophysical method is NOT used to identify and investigate ground water pollution?
Where is a termite shield typically placed?
Which of the following is not a measure to protect the safety of uranium miners?
What is required for inspections of nonpublic areas?
Which of the following substances is NOT covered by the Montreal Protocol?
When implementing hazardous waste minimization strategies, what is the most effective approach?
Which agency is primarily responsible for setting standards for air quality in the United States?
What aspect is essential for integrated pest management?
Which method is not practical for the removal of cadmium?
What is the primary cause of a short incubation period in foodborne illnesses?
Equipment can be disinfected by being in contact with a chlorine solution for at least what duration?
What is the term for the amount of heat required to lower one pound of a product one degree Fahrenheit?
What etiologic agent for malaria is most fatal to man?
Which factor generally does NOT vary directly with the quantity of water used for domestic purposes?
Owners of tanning salons claim they offer a safe tan because they use which type of light?
Which responsibility ensures that public health and welfare are protected by health agencies?
Which one of the following is not a major source of human exposure to dioxin?
How does a chimney's height affect its functionality?
How much liquid bleach is needed to treat 1000 gallons of water for drinking?
Halon-1211 is used primarily in ______.
What is the smallest diameter hole through which an average house mouse can pass?
What is a potential environmental concern associated with landfilling?
What is a common characteristic of hazardous wastes?
Which phenomenon directly contributes to greenhouse gas accumulation?
Which statement about routine dental X-rays for children is false?
What type of sound frequency is typically categorized above 20 kHz?
What is the main purpose of a footing drain in a building?
What biological effects can neutrons have?
Which organization routinely samples air, water, and food supplies for radionuclides?
What does an integrated pest management program aim to minimize?
What was the average life expectancy between 26 B.C. and 395 A.D.?
A major goal of the Earth Summit was to:
What is the primary goal of the Council on Environmental Quality?
An ordinary chest x-ray produces an exposure of about 0.1 rad; a very heavy diagnostic series produces about how many rads?
How long does it take to kill Clostridium botulinum spores at 230°F?
What does "MPD" represent in radiation terminology?
Why is it important to control weeds in the growing season?
Parts of the country that fail to bring their pollution levels into compliance with National Ambient Air Quality Standards are called:
Which agency is typically responsible for enforcing environmental regulations?
A major problem that is thwarting efforts to clean up the air is:
Airborne exposure to asbestos fibers is most frequently linked to which of the following?
What is the approximate amount of residue left after incineration?
Mobile homes have been in general production since what year?
What type of soil is most desirable as a landfill cover?
What is the term for a statistical estimate of an oral dose of a chemical that produces a lethal effect on half of an animal population?
What is ozone effective against in water treatment?
What do the orange pages of the emergency response guidebook provide?
At what decibel level can prolonged exposure start to cause hearing damage?
If sufficient amounts of activated carbon in powdered form are used, what process removes almost all tastes and odors from water?
Which of the following is included as a major regulatory requirement in the Safe Drinking Water Act (SDWA)?
Excreta typically is defined as containing which of the following?
What is the molecular state of hypochlorous acid critically affected by pH levels?
What is the preferred method for disposing of domestic wastewater?
Do the terms "washout" and "rainout" refer to a cleansing process of pollutants in the atmosphere?
Which of the following does not describe the term "frequency"?
In 1990, lead levels exceeded 10ug/dL in US children aged 6 and under by ____.
Which of the following is not classified as a criteria pollutant?
How many litters can a single pair of rats produce in a year?
What is the first product of the decomposition of organic matter that indicates "fresh pollution"?
What is the role of chlorine in pool water sterilization?
What condition can potentially lead to eye irritation in pool water?
Why should sewage sludge not be used as a soil builder or fertilizer supplement for crops if it has not been properly tested?
What happens to x-ray beams or fluoroscopes in many cases?
Which type of waste management is intended to reduce emissions from landfill operations?
Escherichia coli 0157:H7 has become notable for which concerning reason?
When considering water storage requirements, which of the following is not considered a recommended practice?
Which type of radiation is generally less harmful to human health?
What is the most important rule of food storage?
The DPD test is commonly used for determination of:
Which is a typical characteristic of hazardous waste?
Why is it critical to read a pesticide label before use?
What percentage of saturation is considered optimal for the survival of pathogens in soil?
Under which conditions should a pesticide operator wear a respirator?
What type of exposure level management is considered an administrative control?
To assess the resources on a section of property, one should consult a person knowledgeable in which areas?
What is a crucial factor in preventing foodborne illness during food preparation?
What type of inspections are conducted annually to assess compliance with laws and regulations?
All of the following have been associated with methyl mercury poisoning except:
Food inspection programs of the future will focus increasingly on which of the following?
Which part of solid waste management often requires financial support from another part?
Under what condition should food be stored in a refrigerator to prevent spoilage?
Should the operation of a dental unit consider radiation safety practices?
Which subsurface formation allows groundwater contamination to travel the farthest?
What is the primary design purpose of a Class II biological safety cabinet (BSC)?
Which of the following is the more common and least expensive method of backflow control?
The EPA requires that dioxin-bearing wastes be ______ destroyed or reduced before disposal in a secure hazardous waste landfill.
One of the first actions an individual should take upon hearing an order for the evacuation of homes and businesses is to turn off the
Which of the following are not major sources of sulfur dioxide pollution?
What is the purpose of using a forward sweeping motion when collecting water samples from a stream or lake?
Standards for ionizing radiation exposure are designed to:
In the United States, the Ringlemann smoke chart consists of how many rectangular charts?
Algae development will cause all conditions except?
Which pollutant is associated with the phenomenon known as "photochemical smog"?
What depths are typically used in the valley or ravine landfill method for "lifts"?
The biological effects of radiation on all living organisms are termed what?
Which two factors are commonly used to determine soil permeability for wastewater absorption?
What is the minimum period of time that the FDA recommends employees wash their hands and arms up to the elbow?
What type of health risk is commonly associated with long-term dioxin exposure?
Hydropneumatic or pressure-tank water systems are primarily suitable for what purpose?
A S trap is not considered legal in most state plumbing codes due to which of the following factors?
What kind of radiation exposure is usually cumulative?
Which pollutant is a significant byproduct of fossil fuel combustion?
What is the ideal floor covering for a kitchen environment?
What process describes groundwater moving up through a plant's root system and exiting from the leaves?
Which one of the following is true?
The National Environmental Policy Act aims to ______.
What does the frequency of waste collection depend on?
What is the recommended internal cooking temperature for ground beef?
Which substances are not feasible for neutralization and detoxification with most organophosphate and carbamate insecticides?
Should any person bitten by a bat receive antirabies therapy unless the bat is caught and found to be negative for the rabies virus?
When equipment or clothing is sent for cleaning from a hazardous waste site, what must be communicated to the off-site facility?
At what gestational week is a fetus's hearing ability well-developed?
What is a significant concern when selecting a site for a landfill?
Under negligence law, what duty does a sanitarian owe to the public?
What must be done to minimize risks associated with hazardous waste site operations?
Is Onchocerciasis a common illness found in many developed countries?
What does porosity measure in relation to rocks and water?
Which soil condition is most favorable for the removal of viruses?
Why are fluorocarbons (FCs) widely used?
What is a key characteristic of police power?
What does the term "endemic" refer to in epidemiology?
The sensitivity of an ecosystem to acid precipitation is largely determined by the area's:
In the context of radiation exposure, what type of energy conversion occurs with microwave energy?
Which condition could lead to the sudden release of lead stored in bones into the bloodstream?
Hot water for sanitizing assembled equipment should not be cooler than what temperature at the end of the system?
What is required for wearing contact lenses in a potentially hazardous area?
An example of a surface water supply would be which of the following?
Human disease from aerosols of wastewater is primarily related to which treatment processes?
What type of air pollution causes bleaching of leaves in plants?
Which environmental condition contributes to increased mosquito populations?
What is the estimated half-life of lead in bones?
Are bacteria and spores considered natural sources of air pollution?
Why is the use of a cesspool prohibited?
Which gas is a known contributor to indoor air pollution?
A given individual will most easily tolerate noise when:
The percentage of reported food and waterborne diseases is estimated to be?
Which one of the following gases is potentially the most important in terms of global warming?
Is genetic harm caused by radiation considered cumulative?
Which of the following best describes the role of erosion control in watershed management?
What is the principal toxicity concern from substance exposure in day care settings?
Which disease is primarily transmitted by blackflies?
When should a warrant for a routine inspection of a private dwelling be obtained?
When is the fetal tissue most vulnerable to the harmful effects of ionizing radiation?
What phenomenon is a direct result of gases trapped in the Earth's atmosphere?
Which of the following is not related to echinococcosis?
The federal-state program designed to ensure a safe and clean milk supply is known as what?
What does the term "cumulative impact" refer to in environmental planning?
Which of the following is not a factor for the satisfactory operation of a septic tank/sand filter system?
What is primarily used to determine the pitch of a sound?
When was the first federal attempt to regulate pollutant emissions in the United States enacted?
Which factor does NOT affect the reliability and interpretation of the soil percolation test?
What is generally the cause of groundwater degradation supplied by human-generated pollutants?
What defines the distance a sound wave travels in one cycle?
Which one of the following radiations is least penetrating?
Which rock type is an example of an igneous formation?
Is it estimated that less than 62% of water and foodborne diseases are not reported?
The most serious impact of lead in the bloodstream affects which type of tissue?
When assessing the safety of a drinking water supply, which criterion is most crucial?
What characteristic of chlorofluorocarbons initially attracted industry to their use?
Natural disaster victims should be provided with how much water per day?
Which composting method requires the least amount of land space?
The risk of developing an asbestos-related disease is most associated with which factor?
A pool filtration system should filter the entire volume of water a minimum of every:
Universal precautions refer to what practice?
Which of the following can cause a color change in water often due to the decomposition of organic materials?
What should the objective(s) in pest control primarily include?
What does the Langelier index determine the stability point of?
What is the major source of sulfur dioxides in the atmosphere?
Are radioactive substances used in medicine always sealed?
How often should water quality testing be conducted in a public water system?
Following a disaster, raw food should be:
What aspects of radiation exposure recovery are specific to certain cell types?
Which of the following describes a measure of exposure related to both the number of people exposed and the radiation dose received?
To raise the pH of pool water, which substance should be added?
Which chemical is commonly used for sanitizing food contact surfaces?
What is the term for the interval between exposure to an infectious agent and the appearance of the first symptom?
What is the ideal pH range for swimming pools?
What is the term for the horizontal part of the stairs that one steps on?
Which type of radiation is most commonly associated with medical imaging?
Can the ingestion of a single virus particle cause infection in humans?
In unsewered areas, who is responsible for the water and sewer systems for new subdivisions?
The presence of which microorganism in water indicates past or intermittent pollution?
What is the recommended approach for the handling of solid waste starting from its generation point?
During an emergency, the drinking water source should be:
An effective pest management program focuses on which of the following?
How does precipitation help in cleansing pollutants in the atmosphere?
What is the recommended backfill depth over an absorption field?
The site control program at an uncontrolled hazardous waste site must include what element?
Workers involved in waste operations at hazardous waste TSD facilities must receive at least how many hours of training before working?
What does the stability of the atmosphere refer to?
Key components of the HAZWOPER program exclude
In what direction should the operation of a sanitary landfill occur?
The amount of color in water should be less than which of the following?
The use of methyl bromide is mainly associated with which application?
What are the main challenges associated with hazardous waste disposal?
In terms of avoiding acid rainfall, in which of the areas would it be best to live?
Field observations are not always reported in total because?
Which statement about sound composition is accurate?
When burned, which fuel source emits the highest amount of carbon dioxide?
What is a potential risk caused by improper chemical use in pool water?
What was the primary focus of the Montreal Protocol?
What type of tax is used to repay general obligation bonds for municipal capital improvements?
"Earth Day" began in:
What are the two most common methods of sanitary landfill operation?
What is a requirement for storing shucked shellfish?
What problem can arise from using inadequately processed sewage sludge?
Listeriosis is commonly associated with:
Which gas is not considered malodorous?
Which of the following is not a recognized way to address an asbestos hazard?
Which statement about poliomyelitis is not true?
Which route of entry is most effective for pesticide absorption in small children?
National Ambient Air Quality Standards do not apply to which of the following?
Before a drinking water sample is taken, how long should the sampling tap be flushed?
Which one of the following is not a natural source of radiation exposure?
Wastes generated by the construction industry include
Individuals particularly susceptible to the toxic effects of cadmium are those who are deficient in:
What is the pitch classification of sounds with a frequency of 30 hertz (Hz)?
What is the primary function of a storm sewer?
Where in the US have the highest PCB concentrations been documented?
What role does consultation play in developing biosafety programs?
Which event caused significant economic losses due to a PCB leak from an electrical transformer?
Any time a MCL is exceeded, what must the NTNCWS do?
The major impact of global warming would most likely be in which area?
The generally prohibited swimming facility from a public health perspective is a
What is the most effective method to eliminate pigeons?
The environmental impact of increased carbon dioxide is primarily attributed to what activity?
Which chemical is commonly used in swimming pools to control pH levels?
Sensitivity to radiation is probably highest:
Should a regulatory agency be consulted when conducting a suitability audit of a waste disposal company?
What is a primary consequence of rising sea levels?
On what basis are planning and zoning regulations primarily established?
What is the primary health risk associated with organophosphate pesticides?
All are anti-coagulant type rodenticides except?
What is the primary purpose of land-use controls in community planning?
What percentage of mobile homes are typically 65 years old or older?
The best management for intensely radioactive isotopes that have very short half-lives is:
What is the most often observed birth defect resulting from fetal exposure to X-rays?
A potential source of mercury exposure that could remain for years is from:
At what dBA level should sound be considered unsafe for workers over prolonged exposure?
If 5000 persons were exposed to a background radiation of 0.1 rem per year, what would this represent in person-rem exposure?
The test that indicates the amount of extraneous material in milk but does not show dissolved material is called what?
Which of the following is NOT a common use of radiation?
A yellow to brownish black stain observed in a sediment test is an indication of what?
In a dry food storage room, the artificial lighting should provide a minimum of?
Why is pyrethrum considered an important insecticide?
What percentage of available chlorine is gas chlorine considered to be?
What is "Lasso" a trademark for?
Which of the following is NOT a requirement for hazardous waste operations?
Which statement is true regarding garbage stands?
Which agency oversees the Emergency Planning and Community Right-to-Know Act?
Which factor significantly increases risk when exposed to ultraviolet radiation?
PCBs have been used in which systems or devices?
Will a concentration of x-ray machines in one building affect scatter radiation?
What is the appropriate action for large items that are not recyclable?
Which of the following is NOT a tool for a planning board's enforcement?
Which one of the following is considered by many to be the most insidious type of pollution?
Which of the following statements is true regarding solid waste management?
How does the depletion of the ozone layer affect humans?
The rate at which atoms of radioactive sources disintegrate is measured in which unit?
What is a major weakness of using animal studies to determine safe levels of air pollutants?
Infectious Hepatitis A (HAV) is caused by which type of microorganism?
Which disease is not typically associated with mosquitoes as vectors?
The size of a septic tank should be increased by what percentage if it services a garbage disposal?
Which food type has the highest acceptable plate count of E. coli?
What are the peak breeding seasons for rats in temperate zones?
The major controversy regarding microwave exposure injury is related to which aspect?
What is a typical pre-treatment process for surface water before it is used as drinking supply?
At what relative humidity level do excessive condensation, corrosion, and mildew typically occur?
What is the most common method of applying wastewater to land?
What is the primary organism identified in the fecal coliform test?
Granular activated carbon (GAC) filters are used to
Showers are mandatory at hazardous waste clean-up sites for operations lasting longer than what duration?
As of 1975, the diseases which caused 2/3's of the deaths in the US included all but which of the following?
True or false: Some animals can carry Giardia lamblia without showing signs of illness.
When two pollutants are combined and their effects are greater than the sum of the individual effects, this is called what?
Which types of exposures should be considered when assessing radiation hazard?
What thermochemical process converts complete organic solids in the absence of added oxygen?
The sources of water supply are divided into which of the following major classifications?
A major process for the prevention of respiratory disease of susceptible persons is?
What are microscopic photosynthetic plants without roots, stems, or leaves associated with water problems such as taste, odor, and filter clogging?
An establishment known to have imminent health hazards is not closed by the inspecting regulatory authority. This best exemplifies:
What happens to frequency and energy as the wavelength decreases?
The Montreal Protocol categorizes which substances into two classes based on their ozone-depleting potential?
What principle is the Green Lights program primarily focused on?
Chronic low-level exposure to lead in children can lead to which of the following consequences?
Catalytic converters work to reduce all of the following except:
How can food poisoning from Staphylococcus aureus be prevented?
What type of contamination is most often associated with raw poultry?
At what concentration is hydrogen sulfide considered fatal?
A standard stating "the total bacteria count should not exceed one hundred per utensil surface" is an example of what type of objective?
Backsiphonage may be prevented by all of the following methods except?
What is the maximum allowable MPN of fecal coliform in oysters sampled at the source?
What does exposure to formaldehyde primarily irritate?
What environmental factor can significantly influence the health of aquatic ecosystems?
Which of the following is considered a disadvantage of the shredded solid waste landfill method?
A mold control program should include all of the following factors except:
Soil containing loam will remove most of the phosphorus in sewage effluent. Is this statement True or False?
What is the primary effect of chronic exposure to noise pollution?
The legal precedents that form the basis of US air quality control regulations currently in effect began with the:
The main purpose of using baling in waste management is?
Which of the following practices is crucial for the effective management of solid waste?
How should decontamination equipment used at a hazardous waste site be managed?
A factor or agent which increases the risk of cancer is known as a?
Most cases of sick building syndrome can be traced to which of the following?
What is the significance of dissolved oxygen levels in wastewater?
Air pollution is the presence of ______ in the outside air in amounts that are injurious or detrimental to humans, animals, plants, or property.
According to "Universal Precautions", what is considered infectious?
What is a common health concern related to dioxins?
Which of the following best describes a biosafety cabinet?
What is the highest risk of humans acquiring the Herpesvirus simiae (B-virus)?
How far do most ragweed pollen grains typically settle to the ground after being airborne?
Which unit measures the amount of light scattered by particles suspended in a water sample?
Basal and squamous cell carcinomas are most commonly associated with exposure to which of the following?
Which of the following does not seem to be a long-term effect of childhood lead exposure?
The formula (Volume of Pool / Pump Flow Rate (GPM) x 60 min) = turnover rate, will tell us:
When selecting a location for a sanitary landfill, which statement is correct?
What is a measure of the rate at which clear water seeps out of a saturated test hole?
When should bat-proofing be performed to ensure bats are not disturbed?
Where was the "Ozone Hole" first noticed?
What is the appropriate response to the potential infectious status of all patients regarding HIV?
Landfill sites should be located at least how far from streams, lakes or other surface bodies of water?
Employers must develop a program to inform which groups about potential exposure during hazardous waste operations?
The normal change in temperature with altitude is noted as what?
What is an important aspect of formaldehyde contamination control?
What is the most common form of malaria?
Where are the greatest temperature increases as a result of global warming most likely to occur?
What standard do health departments commonly use to evaluate the cleanliness of food establishments?
The ideal temperature for storing most perishable foods is:
What process describes heating air, gas, or gas mixtures to 9032F (5000C) for hazardous waste destruction?
The speed of sound through a medium is dependent on which factors?
Which meteorological elements have the most direct and significant effects on the distribution of air pollutants?
What chlorine concentration in drinking water would be considered excessive?
A major problem associated with methyl mercury is its:
The majority of nitrogen oxide originates from:
Open dumps should be considered as what?
What health threat can swimmers face in inadequately treated pool water?
What event significantly reduced environmental exposure to lead?
Which of the following entities is primarily responsible for establishing water quality standards?
When is the optimal time to apply herbicides for effectiveness?
The term "rad" means what?
Oysters grow best in water with a salinity of?
How often should a food handler be required to undergo a physical exam to mitigate contamination risks?
What is the consequence of using low-quality materials in wastewater treatment systems?
Hardness in drinking water is desirable at levels of
Which of the following has NOT been identified as a hazard from lead exposure?
To enhance the accuracy of global warming predictions, what area requires more understanding?
The proper method of obtaining a sample of tap water for bacteriological analysis involves:
What fundamental step is involved in managing organic chemicals in drinking water?
It is estimated that at any given time, there is/are how many times more water stored underground than in all the surface streams and lakes?
Which of the following can negatively impact the performance of a septic tank?
What is the primary purpose of conducting a sanitary survey in drinking water management?
The type of sanitary landfill that should be developed on essentially flat land sited in dry areas is:
Which statement about inlet and outlet levels in distribution boxes is true?
What is the optimal filtration rate for a diatomite filter?
What is the maximum allowable bather load for a pool that is 40 feet by 60 feet?
Which of the following are not typically members of the infection control committee?
Hazardous waste sites must be characterized prior to what event?
After the absorption field has failed, which action will NOT help in repairing the field?
Aeration in water treatment involves which of the following?
Which group is at increased risk for listeriosis?
What does the term "half-value layer" (HVL) refer to in radiation terminology?
The term 'cooties' commonly refers to which type of infestation?
Nutrients associated with eutrophication include all of the following except?
Which of the following is NOT one of the four major causes of death among Americans?
In swimming pool operations, what is essential for maintaining water quality?
The chemical quality of a pool is generally measured by which 2 tests?
What must supplement routine inspections in food-service establishments to ensure sanitation?
Which is not considered a primary source for Giardia lamblia cysts?
What measurement is used to quantify the dose of radiation absorbed by people?
In children, blood lead levels (BLLs) more than ____ are associated with decreased intellectual performance and other adverse health events.
What is the primary method for protecting individuals from radiation exposure?
Which agency is responsible for protecting our waterways from contamination?
If a series of three consecutive water samples from one supply all showed the presence of E. coli, what is the most logical interpretation?
What is a common feature of systems aimed at protecting groundwater?
The defense in depth concept that is used in constructing nuclear plants is characterized by what?
According to the APHA-PHS Recommended Housing Maintenance and Occupancy Ordinance, who is responsible for the storage and disposal of all rubbish?
How long can sunlamps radiate UV rays before auto-shutting off?
Improperly located wells can lead to outbreaks of which of the following illnesses?
Which statement is true regarding Escherichia coli 0157:H7?
Which radiation exposure is considered a naturally occurring source?
Is everyone subject to natural background radiation?
The ratio of the energy passing through a wall, floor, or ceiling to the energy striking it is known as what?
The Safe Alternatives Policy program specifies what?
When developing a preliminary report, which step is least likely to be included?
In microbiology, the second word of the scientific name Clostridium perfringens indicates the:
In a rectangular furnace, how are the grates typically arranged?
Mussels from which locations can contain a chemical poison that is not destroyed during cooking?
Which state imposes a quarantine on mussels from May 1 to October 31?
Which one of the following is most affected by acid rain?
What level of short-term exposure to formaldehyde can cause serious health reactions?
Which of the following microorganisms can cause foodborne intoxication?
What kind of ozone is particularly harmful to human health and the environment?
Microbial pollution travels only a short distance through
What is the recommended distance from the bottom of the trench to the groundwater table or rock?
How is the relationship between photosynthetic rate in green plants and atmospheric carbon dioxide best described?
Which of the following sources can produce dioxin?
An arthropod-borne disease is spread by which of the following?
The effectiveness of an inspection program relies on what aspects of regulatory staff?
To make raw milk safe for drinking in an emergency, how should it be treated?
Which of the following recognizes environmental quality and community needs?
Which equipment utilizes particle size selective inlets to separate particulates?
After a septic tank has been cleaned, why should it not be scrubbed and disinfected?
What is the MOST common cause of bacterial meningitis in children under five years of age?
Which statement about the use of septic-tank cleaners is true?
Which soil condition is most favorable for the removal of viruses?
What is the most suitable method for the disposal of dead animals?
Wasps are usually attracted to:
How does sedimentation affect water treatment processes?
What should be offered to ensure competent direction of a divisional program?
What is the first type of hearing sensitivity to become damaged due to excessive noise exposure?
What condition occurs when absorbed daytime heat is rapidly released into space, causing surface air temperature to drop below that of overlying air?
What is one of the main concerns associated with the operation of a landfill?
Imhoff tanks used for sewage disposal are primarily dependent upon the action of:
When is an environmental impact statement required?
The chemical used as a measure of the oxidant level of the atmosphere at any given time is:
What substance is formed when vent gases combine with high moisture inside a chimney?
In which situation are alternative small wastewater treatment systems considered unnecessary?
The major damage that results from exposure to organic mercury is to the:
What is a common consequence of exposure to high levels of noise?
What is the main concern addressed by controlling backflow in potable water systems?
The ______ in many cities has been leveling off, but increasing in the suburbs.
The majority of damage from X-rays during fetal development is primarily to which system?
What is a potential health concern associated with high concentrations of nitrates in drinking water?
Is it believed that the ingestion of one virus CFU can cause infection in humans?
Environmental health regulatory staff must be which of the following first and foremost?
Which process is commonly used to promote the removal of pathogens from wastewater?
What can high turbidity levels lead to in drinking water systems?
______ involves the chemistry, physics, and dynamics of the atmosphere and its direct effects on earth's surface.
Which of the following is NOT a purpose of zoning regulations?
Which agency's regulations are NOT mentioned in the compliance requirements for hazardous waste sites?
Which of the following duties of state and local health agencies is intended to ensure that the public's health and welfare are protected?
The permeability of soil is directly related to what characteristic of the soil?
What factors does the proper disinfection of water using chlorine depend on?
The most common source of exposure to cadmium is through:
The air gap between the faucet and sink overflow rim should be how many times the diameter of the supply pipe?
What is the most effective preventive measure against poison ivy, poison oak, and poison sumac?
Which of the following is a primary byproduct of the biodegradation process in wastewater treatment?
Which of the following are examples of groundwater systems?
What is the leading cause of mortality related to asbestos exposure?
When should a poison-bait application program for rats be started at open dumps?
What is defined as actions that do not significantly affect the human environment?
What is the minimum height that a chimney should be above the highest structure of a home?
Activated carbon is used to:
What is the minimum distance required between the field or tiles in a treatment absorption field arrangement?
What is one disadvantage of improper stair riser height?
Which air pollutant is typically found in the highest concentrations in urban environments?
Which organisms play a lesser role in reducing sewage to "soil," liquids, and gases?
The number one item listed under emergency equipment and supplies is:
What may result from laboratory activities that lead to personnel exposure to aerosols?
In strategic planning, what does the term "vision" represent?
A water sample containing 5,000 fecal coliform colonies per 100 ml falls into which environmental impact category?
One of the most important aspects involved in restoring a child who has been exposed to lead to good health is:
The EPA requires that toxic waste incinerators achieve a destruction and removal rate of ______ before the material is landfilled.
Which of the following is a common limitation of using land disposal for waste management?
What is the most significant threat to the ozone layer?
What is the desirable alkalinity level of water?
Approximately what percentage of the original volume remains after incineration?
Why is monitoring air quality essential for public health?
Does comprehensive community planning look at the total region?
If hard water is softened by the ion exchange method, which one of the following will increase?
When the internal temperatures of perishable foods reach 40F, which pathogen's growth is inhibited?
How do sunlamps that radiate UV rays ensure user safety?
What is the primary impact of prolonged exposure to high sound intensity?
What is necessary for effective public health planning?
What is a common requirement for landfills to reduce environmental impact?
What type of factor is discussed in the context of household hazardous waste?
The most common route of pesticide entry into the body is?
What principle guarantees an individual's right to be treated with decency and fairness by governmental officials?
Diatomaceous earth filters should be augmented by what?
Which type of noise pollution is the most disturbing for human communities?
If the Green Lights program achieves its goals, which outcome is expected?
Using wastewater for irrigation of consumable plant products may present a health hazard if the water contains?
Laboratories working with infectious agents in well-controlled settings typically have what kind of impact on the community?
The top of the absorption field gravel should be covered with what type of material?
What is considered to be the most devastating factor to biodiversity?
Swimming pool water clarity is measured in terms of NTU or Nephelometric Turbidity Units. It is recommended that a level of 0.5 NTU:
The limitation of the lift capability of a centrifugal pump is based on which factor?
Why is it important for a business that generates hazardous waste to deal only with licensed disposal companies that have a good compliance history?
Which one of the following is a characteristic of high level nuclear wastes?
Mobilization of metals in acid water becomes a direct threat to human health when:
Which statement is true regarding the use of pesticides in cockroach control?
What is the primary method of financing municipal capital improvements?
What is the correct sequence for washing dishes?
When considering pest control, what is essential to examine before chemical applications?
The presence of coliform in water indicates:
What is a common method for protecting against UV radiation?
The term "Federal agency" does not include which of the following?
What is the primary concern regarding exposure to low-level radiation?
Which material constitutes the largest component of domestic solid waste by weight?
If the fat content of milk increases by ten percent or more, the pasteurizer temperature must be increased by how much?
Which one of the following is not considered a part of particulate radiation?
Which type of radiation has the ability to penetrate skin and tissue?
What type of particles are scrubbers typically used to remove?
What strategy is considered effective in addressing climate change?
What ensures that subdivision plans comply with environmental regulations?
What personal protective equipment is recommended for pesticide application?
What does the term 'rem' stand for?
Sludge accumulation in a tank serving a normal home has been estimated at
Medical uses of radiation can present a hazard through what?
What must be done with decontamination solvents at hazardous waste sites?
When mixing acid and water, what is the recommended procedure?
Well-placed, existing solid waste collection areas are good choices for household hazardous waste collection sites.
What is considered to be the best single strength measure of wastewater polluted water containing degradable waste?
Microbial pollution travels only a short distance through which material?
What factor does NOT affect the average amount of solid waste generated from a specific area?
In a test conducted in North Carolina, how far did sewage organisms travel in sandy soil?
Which of the following is less likely to occur in areas with effective water treatment policies?
Which of the following is not considered an advantage of using shredded solid waste in a landfill?
What was the first medical use for mercury?
What is a potential cause of septic-tank failure?
Comprehensive planning includes which of the following factors?
A "chigger" is the larval stage of which type of organism?
In order to simplify cleanliness, window sills should be sloped toward the room and down at an angle of ______ degrees:
Which of the following gases directly enters biological processes?
Is it true that PCB waste collected from households is exempt from disposal regulations?
Which disinfecting compound can be safely used in full strength?
Which state is frequently associated with lead poisoning due to the leaching of lead from solder into home-brewed liquor?
How can the rabies virus be transmitted?
The National Pollutant Discharge Elimination System (NPDES) prohibits the discharge of pollutants into U.S. waters unless a permit is issued by
Which is the smallest practical planning unit in regional planning?
What is the source of scombroid poisoning?
What process follows the biological breakdown of organic matter in sewage treatment?
What does the Montreal Protocol aim to control?
What is the first step required before converting an "open dump" into a sanitary landfill?
Absorption of microwave energy by bodily tissues is largely associated with which factor?
Which one of the following has not been shown to be associated with PCBs?
What is the determining factor for the minimum number of water samples required for bacteriological analysis in public water supplies according to the Safe Drinking Water Act?
What is the advantage of compressing or shredding bulky objects before landfilling them?
Which of the following diseases is uniquely categorized as unlike the others in terms of epidemiology?
Land disposal by hazardous waste regulation includes:
What is the preferred method for controlling sewage from watercraft?
What process can remove over 90% of sodium arsenate from water?
What is essential for the control of infectious, intestinal diseases in humans?
The major constituent of the photochemical oxidants is:
Which level of government is best suited to handle the costs associated with community functions due to political boundaries?
Which type of waste requires special handling due to its hazardous nature?
What is one of the most common reasons for the contamination of wells drilled through rock, clay, or hardpan?
Which of the following is (are) fundamental to the control of inorganic chemicals in drinking water?
Which of the following is NOT one of the four characteristics of hazardous wastes as defined by the EPA?
The primary purpose of the Hazard Analysis and Critical Control Point (HACCP) system is to:
What percentage of their total time do most urban dwellers spend indoors?
Which of these pollutants is known for its impact on respiratory health?
Which method is NOT effective for controlling bats in structures?
Which gas is primarily produced from vehicle emissions and contributes to urban smog?
Injury to plants due to ozone presents as which of the following symptoms?
Should biological effects govern the required standards of radiological protection?
Lead poisoning is most acute for which age group?
What materials reflect microwaves?
By the age of 65, what fraction of Americans are expected to experience hearing loss that affects communication?
Which gas is primarily dangerous due to prolonged exposure in poorly ventilated basements?
What can sewer gas contain?
The first emission standards for automobiles primarily addressed the emission of which substance?
Which one of the following has been implicated in many rush-hour traffic accidents?
The regulatory level for total cresol under the RCRA Toxicity Characteristic rule is
True or false: Ascaris ova can survive long periods in dry environments.
What type of well is considered least likely to become contaminated?
Why is a water sample usually packed in ice for bacteriological analysis?
Relief from hay fever may be obtained by:
Which conditions indicate organic stream pollution?
Eradication of mosquitoes and ticks would have no effect on the epidemic of which disease?
The primary method of eliminating house flies is?
In the APHA method of measuring housing quality, which of the following would be considered a minor deficiency if found inadequate?
A GAP analysis evaluates what type of organizational state?
In which part of the Earth's atmosphere are photochemical oxidants produced?
Which agency regulates hazardous waste in the United States?
How does population growth impact sewage treatment requirements?
What two factors are used to determine groundwater contamination potential from septic tanks?
Many of the problems associated with migrant labor camps are related to
Which of the following is not considered a satisfactory solution to the problem of chemical contamination in well systems?
Which of the following is a characteristic of gravel?
What denotes a septic tank in need of repair related to effluent quality?
Dealers involved in the interstate shipment of shellfish must comply with requirements set by which organization?
How is a young lake typically classified?
The weight of temporary storage containers should not exceed which limit for convenience?
What type of decomposition occurs in an established sanitary landfill?
Which of the following does not appear to be associated with exposure to microwaves?
Final disposal of sludge may include all of the following except:
What service provides information and advice on hazardous waste spills 24 hours a day?
What type of pollutant includes substances like acid rain contributing agents?
The final rinse water temperature for a heat sanitizing machine dishwasher should be:
What is a sign that a septic tank may need service or attention?
Which of the following is a method by which recreational waters may be contaminated?
Which pest is widely known to transmit endemic typhus?
What is the primary function of the Food Safety and Inspection Service (FSIS)?
How do flies typically spread disease?
What is the most common contributing factor to foodborne illness?
Which of the following is NOT a definitive characteristic of reliability in data collection?
What is produced when chlorine is added to water, primarily?
How long does it typically take for oysters to purge contaminating viruses and bacteria in purified seawater?
Which chemical is commonly used for pool disinfection?
Do sound absorbing materials absorb low frequency sounds more effectively than high frequency sounds?
Which of the following is NOT a function of pool filters?
The primary purpose of a sanitary landfill is to?
In emergencies, which method can be used to disinfect small quantities of water?
What is the primary reason for regulating food establishments?
Which factor is most important in contributing to disease transmission of microbiological agents?
Where is the quality of milk reaching the ultimate consumer largely determined?
The US DOT emergency response guidebook can be used to do which of the following?
In legal terminology, what is the power of condemnation also known as?
The primary use of a sand filter is to:
For which application is lead-based paint still acceptable?
A landfill site should not?
What is the primary way to express the strength of wastewater?
What water constituent is associated with staining plumbing and clothing dark brown or black?
Are good housing and sanitation considered more effective than immunization for controlling certain diseases?
What is the maximum reduction in future landfill volume that can be expected from resource recovery?
What percentage of the total cost of solid waste management is typically associated with collection cost?
What is an essential consideration when selecting a site for a landfill?
By nature, unpolluted rainfall:
Sewage treatment plants should be designed to accommodate which consideration?
A dragline at a landfill site can be utilized for which of the following purposes?
The safe distance between a well and a waste disposal system depends on which factors?
Incinerators are rated based on what measurement?
When assessing risk in biosafety, which is the first action taken?
Which of the following best defines 'public health'?
When identifying hazards, what is primarily assessed to prevent employee risk?
The ability of the soil to absorb and allow water and air to pass through is called?
In preparing a legal action, one of the first steps a sanitarian should do is to?
What percentage of electrical energy generated in the US is approximately produced by nuclear power plants?
The louder the sound, the greater the:
Which of the following is not an advantage of the land disposal of digested sewage (sludge)?
What is the term for the failure to perform an official duty without sufficient excuse?
Is it true that most cells, tissues, and organs in the body are independent and the destruction of one will not affect the others?
Which of the following is NOT a method of transmission for disease by flies?
What is an epidemic?
Which technique is essential for preventing cross-contamination in a kitchen?
What is the normal economical hauling distance to a refuse disposal site?
Why is the ozone layer considered essential for life on Earth?
What is a commonly known disinfectant used in pool maintenance?
What type of waste management process typically involves high temperatures for waste destruction?
The first Federal standards for occupational exposure to noise were issued by:
Which pathogen is commonly associated with undercooked beef?
What term describes the inherent capacity of a pesticide to produce injury or death?
What is the recommended minimum amount of light in foot candles for food work surfaces?
What are engineering controls in a workplace?
What is the leading environmental health problem affecting children in America?
What is the best method for eliminating rats?
What percentage of medical and dental X-rays do federal officials estimate to be unnecessary?
What is a radioisotope?
What is a common method to evaluate pest populations before treatment?
Examples of thermal destruction processes in addition to incineration are
If the radioactivity of a material is not known, what can be said about the determination of its half-life?
The term containment in a laboratory context describes what?
Which health effects are most closely associated with air pollution?
Which statement is true regarding coliform organisms in drinking water?
What is the key to an effective, long-term rodent control program?
Which two states were involved in the initial identification of Escherichia coli 0157:H7 as a pathogen?
A potential public health problem associated with reprocessing nuclear fission material is:
Under RCRA, the EPA standards must be followed by all persons who do what?
What is the primary route through which asbestos enters the human body?
Who prepared a circular to assess "the probable impact of the proposed action on the environment"?
What could be the most dramatic consequence of global warming?
What does the establishment number on a pesticide container indicate?
What is a general assumption when using surface waters for drinking supplies?
Radon cannot be reduced with which of the following devices?
Campylobacter may be safely used in the laboratory at which biosafety level?
What type of disease is schistosomiasis classified as?
What does the presence of excessive chlorine in drinking water not effectively do?
All of the following are considered ionizing radiation except:
Aeration in water treatment is particularly beneficial for which substance?
Can a thin sheet of paper stop a beta particle?
Which of the following is a common symptom of foodborne illness?
What does mottled brown and red soil indicate?
Which of the following is commonly considered when classifying waste as hazardous?
When is it necessary for a sanitarian to obtain a search warrant to enter a restaurant kitchen?
An example of an anticoagulant rodenticide is:
The effective half-life of an injected radionuclide depends on which two factors?
What type of filter is recommended for use in small communities and rural places?
What health issue can exposure to formaldehyde cause?
What is the best sanitary landfill method for an area with rolling terrain?
For every 1,000 new people, a community will generally require all of the following except?
Which factor significantly contributes to environmental health issues related to fossil fuels?
What is the process called when water that has fallen on land returns to the oceans?
The reason acid rainfall is a politically-charged issue is:
How often should public pool water quality be monitored?
What do minimum APHA-PHS standards for housing include?
What is the most important factor leading to the abandonment of a site?
What is a good reason to paint 6-inch wide white lines along walls in a warehouse?
Which type of waste would typically require special handling due to its hazardous nature?
What is required for an approved public swimming pool's disinfection system?
Which method is typically used to control rodent populations in urban areas?
Which of the following methods is not commonly used for landfill leachate treatment?
What is a significant health issue associated with occupational exposure to asbestos?
Which gas is primarily responsible for ozone layer depletion?
Which contaminant level must be reported to the public if exceeded?
Compactibility of soil in landfills primarily depends on which factor?
Beta radiation can be commonly eliminated by which materials?
What is the Greenhouse Effect a result of?
Which of the following is not an organophosphate pesticide?
Which property of PCBs contributes to their volatization into the atmosphere?
Is marsh miasma an alternative name for the disease known as Legionella?
Which agency is primarily responsible for ensuring the safety of the nation's public water supply?
Which type of filter is recommended for use in small communities and rural areas?
Which of the following is the most critical step needed before detailed information is collected?
Funding for the collection, storage, and disposal of household hazardous waste always comes directly from the individuals who generate the waste.
Which method is NOT effective in controlling landfill fires?
Acid condensates, dust, soot, and smoke are categorized as what type of air pollutants?
Brine from water softening units as low as what percentage may inhibit bacterial action in septic tanks?
What is the primary function of a home grinding system regarding garbage disposal?
What would be a characteristic of total suspended particles?
Which agency is primarily responsible for overseeing biosafety in laboratory settings?
The high moisture content of combustion vent gases creates what issue?
The Department of Energy regulations require the solidification of high-level radioactive wastes within what timeframe of their production?
True or false: House mice are known carriers of Lymphocytic choriomeningitis.
Large doses of radiation applied locally, as in therapy, pose which type of risk?
Why are environmental impact assessments critical in urban planning?
Which of the following is crucial for successful septic system operation?
What type of absorption systems may be used in areas of unsuitable soil?
The appointment and maintenance of an Institutional Biosafety Committee (IBC) is a requirement of which organization?
Why are footers important in construction?
What is the goal for effective management of hazardous waste?
Are dry cotton ear plugs equally effective against noise control compared to fitted ear plugs and earmuffs?
What is a key factor in the strength of a household hazardous waste management program?
In valleys and ravines, which method of landfilling is deemed best?
Which type of evidence is generally considered most useful in legal settings?
What term is used for emissions that escape into the ambient air without being vented through a stack?
What size particles can reach the lowest parts of the lungs?
Which of the following is considered a self-imposed health risk factor?
What constitutes a biohazard?
Which of the following would not be considered domestic sewage?
Which statement concerning ozone is incorrect?
An example of what involves closing down an establishment without first giving a required statutory notice?
What is required for the connection between the pool drain and the sanitary sewer?
To obtain reproducible results with a soil percolation test, it is very important to:
At which concentrations can methane in the presence of air become explosive?
Which pest is associated with a home sanitation issue regarding rodents?
Which organization has developed a national performance standard for environmental health?
Long-term wind data at a specific location is typically represented in what graphical form?
What does the Toxic Substances Control Act (TSCA) of 1976 primarily regulate?
What is the role of skimmers in pool maintenance?
What indicates an increase of dissolved solids due to evaporation in whirlpools and spas?
Which of the following statements regarding ozone disinfection is NOT true?
What is it called when stormwater and domestic sewage enter the same sewer?
Where is Escherichia coli 0157:H7 primarily found?
Which food does not require refrigeration at 41F (5C)?
What is the grate area requirement for the main drain to prevent dangerous suction effects?
Which step is NOT part of controlling corrosion in piping?
In the context of groundwater monitoring, what is often tested for effectiveness?
Which city has a reported water concentration of asbestos ranging from 10-100 million fibers per liter?
What is the first step in a rat control program?
The Emergency Planning and Community-Right-to-Know Act was prompted by the accident at:
What safety requirement ensures that pool drains do not create dangerous suction effects?
On-the-job education should start with planned, routine, intensive in-service training of?
What is the permissible 8-hour threshold limit value for H2S?
Under what circumstances is urine usually sterile?
What is a notable characteristic of PCBs?
What is considered a primary method in evaluating water quality in lakes and reservoirs?
______ assists in economic growth by increasing personal income and retail sales.
During nuclear emergencies, which agency provides technical support?
Which variety of rat is most common in urban environments in the US?
What effect does the reduction in mortality from a disease have on overall life expectancy?
What are modern incinerator furnace walls typically lined with?
For a safe living environment, housing codes aim to enforce standards that address ____.
Which pH could cause the least eye irritation?
The biosafety containment level appropriate for agents with moderate potential hazard is which level?
Which of the following substances is commonly used to control the growth of algae and protozoa in water?
Which organism would probably survive in a hot tub?
What is a concern regarding all hazardous waste landfill liners?
Which of the following methods is commonly used for measuring air quality?
How effective is antibiotic use in controlling disease compared to other measures?
What process reduces the final volume of waste materials?
In emergency radiation exposure, what is a responsibility of the state?
Which cockroach is the most common pest found in restaurants?
Turbulence is known for being what in relation to air pollution dispersion?
DDT usage is banned in all countries with exceptions noted in which regions?
The most practical way to control hay fever is to:
Which of the following types of radiation is not commonly recognized?
Which of the following is not considered a common refrigerant?
Which condition may help minimize leachate problems in landfills?
What is the purpose of a plastic ground cover in a crawl space?
What effect do acidic conditions have on the growth of methane-producing bacteria?
All of the following are characteristics of an ideal shielding material for lead paint surfaces except ____.
Chaga's disease is also known as what?
Malignant melanoma is primarily related to which condition?
What type of analysis is crucial for a comprehensive solid waste study?
What is the minimum wash water temperature required in a hospital laundry?
What is the primary cause of death resulting from automobiles exhaust accumulation in garages?
According to the Federal Drug Administration, milk is considered pasteurized if it reaches what temperature?
The placement of the distribution box is critical for what reason?
Which particulate air pollutant poses the most significant health risk to humans?
The term "rem" is short for what?
What is formed when chlorine is added to water?
When disinfecting equipment with hot water, what should the water temperature and chlorine concentration be?
Which of the following is an explosive component of sewer gas?
What is typically included in the plans for an area to be sewered?
What is the desirable retention time for presettling reservoirs to eliminate turbidity before treatment?
How often should water in wading pools be completely recirculated?
What is the primary regulatory body overseeing pesticide use in the United States?
The term "radioactivity" was "coined" by which of the following individuals?
Are neutrons considered charged high-energy particles?
What is an important consideration when designing a landfill?
Which disease is transmitted via tick bites?
Which bacteria can survive cooking to appropriate levels?
What is a significant characteristic of rats concerning their senses?
Which factor contributes the most to an increase in neighborhood noise levels?
Where should a permanent facility for collecting and storing household waste be located?
Which of the following septic-tank additives is not recommended?
To mitigate health risks, which agency collaborates with local health departments?
Residents of which of the following cities would probably receive the most exposure from naturally occurring radioactive minerals?
Which areas are considered higher risk for radon exposure?
Common deficiencies in fluoroscopy units include which of the following?
Which of the following diseases is primarily caused by environmental factors?
Approved emergency response plans at nuclear power plant sites must be tested at least every?
When temporary shelter is necessary in an emergency, the first consideration in shelter selection should be
What substances are greatly reduced by lime coagulation, mixed media filtration, and activated carbon filtration?
Which one of the following is least likely to occur in the US?
Drinking water standards generally specify that a water is safe if testing reveals no more than
What does an environmental impact statement provide?
What percentage of a typical American's lifetime exposure to ultraviolet radiation occurs before age 20?
Which of the following is not a system used for treatment and disposal of animal wastes?
Turbidity in water can result in which of the following issues?
The written safety and health program must incorporate which of the following components?
What animal is recognized as the primary reservoir for the newly discovered Hantavirus?
Which is the standard measure for water turbidity?
In sandy clay soil, what is the maximum height of unsupported sides or banks allowed for a person to work in a trench or pit?
What organization regulates the siting of nuclear facilities?
How should rubber valves and parts of milking equipment be cleaned?
Factors that could determine the effect of radiation on the body include which of the following?
The precise levels at which specific air pollutants become a health hazard are relatively easy to establish by existing surveillance systems. Is this statement true or false?
A filter of 2 mm of aluminum is effective in absorbing which type of radiation?
What is the primary difference between gamma rays, x-rays, and visible light?
Many defects in x-ray units are easy to find and need no instruments. Is this statement true or false?
Which method is commonly used to treat wastewater?
Which of the following best describes PCBs?
What does sludge and scum accumulation in a septic tank indicate?
What is a common treatment method used to disinfect wastewater before it is discharged?
The flushometer valve is typically protected by which of the following?
How do environmental health technicians' assignments differ from those of environmental health scientists or sanitarians?
Revenue bonds are typically repaid by which of the following?
What is the normal home range of the Norway rat?
What is the proper procedure for dealing with broken glassware found in contamination risk areas?
What has contributed to the loss of effectiveness of malaria prevention programs in many countries?
Which federal agency is primarily responsible for ensuring the safety of food products in the United States?
According to the FDA, what is the maximum time that sunlamps radiating UV rays can operate before automatically shutting off?
What percentage of total pool water should gutters or skimmers ideally receive?
When conducting environmental health assessments, what type of data is essential?
What type of herbicide are soil sterilants classified as?
What conditions would result in the worst case of pipe damage due to corrosion?
What is the safe cooking temperature for poultry products?
Which method is used for testing residual chlorine while minimizing interference?
At a pH of 7.2, what is the molecular state of hypochlorous acid after chlorination of pool waters?
Grease traps are installed for the purpose of minimizing grease in the sewer system. What is true about their effectiveness?
The ideal location for a transfer station within a collection service area should be?
The first state to implement a motor vehicle inspection and maintenance program was:
Who is responsible for providing a medical surveillance program to workers at hazardous waste sites?
On what basis should an inspector decide to use embargo, seizure, or condemnation?
Which term describes the end results that are attainable within a program?
Sources of dioxin include:
The main risk associated with poorly maintained public pools is
Which type of pollutant is most associated with a heightened risk of death and disease?
In which atmospheric region do virtually all life activities occur?
Nephelometric Turbidity Units (NTU) are most commonly used to measure what?
In recent years, the largest number of rabies cases were associated with:
What is the maximum temperature a freezer unit for frozen food should maintain?
The one of the following diseases in which rats don't act as the intermediate hosts is?
The concentration resulting from a continuous emission of a pollutant is directly proportional to wind speed. This statement is:
Which minerals and chemicals can cause problems in ice manufacturing?
Are long-term effects of radiation on an individual predictable?
The most satisfactory basis for measuring quantities of solid waste is by which method?
What is the immediate priority for first responders during an emergency?
What approach should be taken for effective weed management?
Ultraviolet radiation is primarily emitted by what source?
What is the optimal pH range to minimize eye irritation while maintaining effective residual chlorine?
Which statement about ozone as a disinfectant is false?
If permitted under existing laws, which action would effectively cease the operation of an establishment?
Which of the following diseases is transmitted through water contact?
Is it true that the disease caused by Legionella pneumophila originated in the toilet tanks of older hotels?
Which soil type has the greatest percentage of porosity?
Which cycle describes the continuous movement of water on, above, and below the surface of the Earth?
What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-8 moles per liter?
What is the appropriate process for bottle washing in large plants?
Which would not be considered an appropriate use for a completed landfill?
What is the recommended maximum level of NTU for swimming pool water clarity?
What should be prioritized before using chemical means for pest control?
The amount of radiation damage in human exposure to ionizing radiation is measured in terms of:
Which of the following is not a characteristic of hazardous waste?
Each water quality class has what type of standard established?
What is the purpose of prechilling milk after it leaves the cow?
A particle count of above what number is representative of an urban area?
Food that is greater than what thickness, if frozen or partially thawed, should not be cooked?
Which one of the following poses virtually no health threat in terms of inorganic mercury?
A hydraulic ram is used to elevate water. What powers hydraulic rams?
After a landfill site is closed, what is the minimum depth of compacted soil that should cover it?
Approximately how many loads per day requires one piece of refuse-compaction equipment at a landfill site?
What is the most effective practice for preventing trichinosis in people?
Which method is preferable for controlling weeds and pests in a sustainable way?
Hemolytic Uremic Syndrome is caused by infection with:
What is the fatal dose range of barium that may harm the nervous system and heart?
The goal of the National Environmental Policy Act is to encourage harmony between:
What factor affects the disinfecting ability of chlorine the most?
What should be the ideal air gap size for compliance with plumbing codes?
The septic tank functions as a
What does a SWOT analysis focus on?
What is typically the primary goal of solid waste management?
The basic principles of disease control include all of the following except:
How often should commercial septic tanks be inspected for cleaning?
What temperature should the final rinse water achieve for effective sanitizing in a heat sanitizing warewashing machine?
Which type of data is essential for using an air quality model?
Which of the following is NOT a characteristic of groundwater?
What is essential for ensuring safe recreational facilities?
The minimal recommended air circulation rate for residential buildings is ____ fpm.
Which of the following contributes to the effectiveness of water clarity improvement?
What is the main purpose of a decentralized wastewater treatment system?
Which one of the following is least likely to be a viable response to stop global warming?
In which direction should the operation of a sanitary landfill be aligned?
What is considered the primary source of public exposure related to nuclear power production?
In the bacteriological analysis of water, a positive completed test is definite proof that the sample of water:
Who should prepare the plans for an area to be sewered?
By definition under RCRA hazardous wastes are ______ wastes.
The increase in carbon dioxide concentration in the atmosphere is primarily due to what factors?
What type of materials are effective in reducing noise transmission?
The most common problem associated with the disposal of hazardous waste is:
Which industry is historically linked to early occupational exposure to a toxic mineral?
Which method is known to allow for significant volume reduction of municipal solid wastes?
Which pesticide is legally allowed for use by the public in the United States?
The dose or energy absorbed by an irradiated object depends on which of the following settings?
The insect infestation on humans known as pediculosis is caused by which of the following?
How can the condition of a wastewater system be effectively monitored?
What is a common use for lasers outside of medical applications?
The level of atmospheric carbon dioxide can only stabilize if emissions are reduced to:
Added moisture used in maceration has what effect on the handling and haul costs of solid waste?
Individuals react differently to noise depending on which factors?
What is loam primarily composed of?
Which sequence accurately describes the three zones of stream pollution?
What is a major consequence of improper sealing of a well casing?
According to the Resource Conservation and Recovery Act (RCRA), how must hazardous household waste be disposed?
What is an indication of a septic tank in need of cleaning?
What is the maximum size allowed for a stair riser?
What factor is most likely to cause chronic water shortages?
A stud is a unit of building construction that is intended as a:
What is true regarding childhood exposure to electromagnetic fields (EMFs)?
What is the minimum temperature required for the second step of the combustion process in an incinerator?
What type of waste requires a charging hopper, gas cooling, and particulate removal for disposal?
What compound is the principal scale former?
What is a significant consequence of pesticide misuse?
The major target for damage associated with ultraviolet radiation is:
The end of a waste pipe should terminate at least ____ above the rim of a sink or receptacle directly connected to the drainage system.
The term "rem" does not take into consideration the biological effect of different kinds of radiation from the same dose in rads. What is the correct answer?
The recommended maximum length for gravity flow absorption field system materials is how many feet?
What are the reasons for nosocomial infections in hospitals and nursing homes?
Which statement is correct regarding methane gas production?
The field distribution piping should be surrounded with ______ and at least 2 inches deep under the pipe.
What is considered the primary source of excessive noise in many communities?
A jet pump can lift water a maximum of how many feet?
Plants employing trickling filters, activated sludge, and spray irrigation present a possible health hazard to their employees due to
Which sampling device is best suited for collecting undisturbed soil samples?
What is the most important step in the use of pesticides?
How often are X-ray units generally due for reinspection?
What products are created from the melting out of fats in garbage reduction?
Why is burning off poisonous plants not advisable?
Which statement about dioxin is considered misleading due to the testing done on specific animals?
What is the unit of measurement most commonly used to measure loudness?
Reducing which of the following can help mitigate acid rain?
What is the estimated annual cost of foodborne illnesses in the United States?
What is a significant environmental concern regarding PCBs?
Which of the following gases is not considered a major atmospheric gas?
Soil moisture of approximately __ % of saturation is optimal for the survival of pathogens:
Which of the following is a common vector for the transmission of foodborne diseases?
Which principle(s) is(are) effective for external radiation protection?
Which disease is transmitted through birds and bird droppings?
How much of a hydro pneumatic tank's volume typically consists of water?
Which of the following is not a commonly accepted method or device to prevent backsiphonage?
What primarily powers a hydraulic ram used to elevate water?
Vector-borne encephalitidies can be transmitted directly from person to person.
Why are anticoagulant type rodenticides coated with paraffin?
Is it true that the longer the wavelength, the lower the frequency and energy?
Should household hazardous waste disposal bids be evaluated solely based on price?
Yellow jackets usually build their nests below the ground.
The effects of air pollution are influenced by:
Which statement is true regarding the primary Drinking Water Standards?
What is the foundational purpose of using subdivision regulations in planning?
The most characteristic symptom of individuals occupationally exposed to PCBs is:
What should a program plan for activities list as criteria?
Microbial pollution travels only a short distance through which of the following?
What is the main purpose of a sewage treatment plant?
What is the usual mode of infection from Salmonella?
Which of the following wells is considered the most dependable source of water and is less likely to become contaminated?
Noise levels in a community are generally linked to which of the following factors?
Which of the following would be classified as a non-transient, non-community water system (NTNCWS)?
To produce thermal effects, microwave energy is converted to what in the body or organism?
How far off the floor should dry stored goods be kept to prevent contamination?
For how long can bacteria be carried in the digestive system of a housefly?
Facultative bacteria can
In an emergency situation, what is the correct order of importance for first responders?
Which statement about sanitation and pest control is correct?
What impact might global warming have on rainfall patterns?
Which of the following hazards is evaluated by screening for Clostridium perfringes in water testing?
What plays a significant role in the strength of a household hazardous waste management program?
According to the World Health Organization, approximately what percentage of the world's population breathes air that contains health-threatening levels of particulate?
The study of the occurrence, frequency, and distribution of diseases is referred to as what?
What is the primary concern regarding leachate in landfill management?
The changing role of environmental health scientists has primarily been influenced by?
The grinding of garbage is an acceptable method of?
Which general human health problem has been definitively linked to exposure to dioxin?
How much higher is the incidence of tuberculosis among laboratory workers compared to the general population?
What aspect of community health does regulatory responsibility cover?
What is essential to achieve reproducible results in a soil perc test?
What significant disease do bats pose a threat to humans by carrying?
The final product in biochemical oxidation of ammonia yields:
What factors influence the quality of surface water?
Which air pollution component can lead to respiratory problems in humans?
What is the primary method for achieving permanent results in rodent control?
Who investigated several proposals to establish a Quality of Life index?
A water leak no larger than 1/8 inch in diameter can result in a loss of how many gallons in 24 hours?
The Council on Environmental Quality was established by which title?
How many gallons of water per day could be saved by installing water-saving plumbing devices in homes with 2-3 people?
A physical cross-connection is defined as:
Which rodenticide is also known to act as an emetic?
A project study is synonymous with which of the following?
Which one of the following is most hazardous to human health?
Milk is often contaminated with sediment due to which main factor?
Which of the following is NOT a method for disease prevention?
What is one of the main benefits of establishing a solid waste transfer station?
CAT scanners are primarily used to locate which of the following?
After a landfill is closed, how much soil should ideally be placed on top of the site?
Which type of soil is most suitable for subsurface absorption of wastewater?
Methylene Blue Active Substance (MBAS) is used to identify the presence of what?
What is the role of management in the follow-up after an environmental health inspection?
What type of infection is listeriosis?
Which of the following statements is true regarding an inspection efficiency rating?
What does the Federal Insecticide, Fungicide, and Rodenticide Act require for pesticide products?
What is the minimum distance pool inlets should be located below the water line?
Which organism is not known as an iron bacteria?
Which type of noise is most often regarded as annoying by residents in the community?
The housing code is best described as ____.
According to USEPA standards, what is the required pH range for secondary treatment effluent?
Which of the following is not a recommendation for topography and site survey?
Which one of the following statements about cadmium is false?
If properly installed, which type of flooring is considered one of the best for kitchens, dairies, and bakeries?
What characteristic of water is essential for safe drinking water supply?
What factors contributed to the significant increase in life expectancy from 1900 to 1974?
What is the required distance between the end of the water supply pipe and the sink?
Which illness is commonly transmitted by mosquitoes?
What is a dimensionless unit used to express physical intensity or sound pressure levels called?
What compound has been known to cause crippling skeletal damage to cattle through contaminated vegetation?
Inhalation of which substance may lead to chronic airway resistance?
What do the four biosafety containment levels consist of?
What is the minimum educational requirement for sanitarians and environmental health scientists?
Which of the following is probably least susceptible to microwave induced injury?
Which chemical is most widely used to destroy microorganisms in water?
A mature ragweed plant can produce up to how many pollen grains in one season?
What type of water treatment method typically involves the use of alum?
What is considered a primary concern for a successful environmental control service?
What attracts wasps?
Halon-1301 is primarily used in what type of system?
Which statement about asbestos exposure is false?
Composting involves the controlled decay of organic matter derived from which of the following?
What is one function that filters perform in relation to radiation?
Mycotoxins are poisonous chemicals produced by which of the following?
What is the primary product formed when chlorine is added to water?
What is considered one of the greatest environmental issues of the late 20th century?
What is an essential consideration for waterborne disease control measures?
Which of the following is an unacceptable operating practice at a sanitary landfill?
What is the minimum detention time recommended for septic tanks?
Which of the following is the least appropriate option for minimizing hazardous waste?
What aspect of waste management must be monitored to ensure compliance with federal regulations?
At what age does a female rat become sexually mature?
Which of the following is an essential component of effective environmental health programs?
Diatomaceous earth filters should be supplemented by what system?
What are masonry reservoirs used in rural water supplies commonly called?
What major benefit is derived from assessing air quality in urban areas?
Why should a faucet be situated well above the rim of a sink in a plumbing system?
What factor is critical in determining the lethality of radiation exposure?
What is the primary function of the Occupational Safety and Health Administration (OSHA)?
Stakeholder Focused Interactive Strategic planning aims to find what?
In the context of environmental health, which of the following terms best describes pollution control measures?
What is the median lethal dose of radiation associated with a 50% mortality rate in one month?
The Medical Waste Tracking Act of 1988 required which agency to establish a demonstration program for tracking medical waste?
What pH and temperature do oysters grow best at?
To create a solution of 100 mg per liter available chlorine, how much of 5.25 percent bleach should be mixed with one gallon of water?
Perhaps the most "infamous" incidence of radiation-induced illness involved:
At what decibel level is hearing damage likely to begin during prolonged exposure?
Which document is required to assess the environmental impact of public projects?
Milk is considered Ultra-High Temperature pasteurized if it reaches which temperature?
True or False: A lower voltage x-ray machine is more hazardous than one operating at a higher voltage.
The ASHRAE recommended minimal thermal standard for dwelling is ____ F at 40% humidity and an air circulation rate of 45 fpm.
The only country in the world to compensate victims of air pollution is:
Mining uranium is associated with which risk related to ionizing radiation?
Which of the following is the least effective method for cadmium removal from drinking water?
When a health violation is classified as a misdemeanor, it can be more readily resolved by?
Perhaps the greatest problem that resulted from the testing of nuclear weapons prior to the Nuclear Test Ban Treaty was:
What kind of pollutants does the Ringlemann chart specifically evaluate?
Following floods or other natural disasters, public concern for which vaccination often arises?
What is the primary function of a sand filter in water treatment?
Large items that are not salvaged should be?
Which one of the following is not an anticipated benefit of regularly using a sunscreen of SPF 15 from infancy through age 18?
Which microbe is primarily responsible for skin infections in whirlpools?
What is the primary cause of indoor air quality problems?
Which statement is true regarding background radiation?
The primary reason for fish disappearing from bodies of water becoming acidified is:
HAZWOPER requirements apply to which of the following?
Are sources of x-rays that operate at a voltage above 10 kilovolts less hazardous than sources under 10 kV?
Sylvatic plague is defined as an infection in which type of animal?
Rattus Rattus is also referred to as the:
The main environmental concern with improperly functioning septic systems is?
Which of the following is a key goal of regional planning?
The intensity of a sound wave is defined as what?
According to studies, swimmers experience higher rates of illness due to which of the following?
What is the most effective method of maintaining pool water quality?
What is the proposed benefit of a biosafety manual?
What is the correct term for hay fever?
How long may coliform bacteria survive on soil surfaces?
The suitability of soil for the subsurface disposal of sewage and other wastewater can be determined by a study of soil characteristics and the?
An adult rat requires approximately how much food per day?
Which of the following is considered a secondary pollutant?
Most pesticide deaths in children and adults in the US are due to?
Isotopes of the same element have what in common?
To disinfect a well, one should mix and pour directly into the well:
In assessing radiation hazard, should the sum total of all exposures be considered?
What is the primary risk associated with fleas as parasites of rodents?
Common causes of failure of septic tank seepage field systems include improper sizing, nonsuitable soil, nonservicing, and
To prevent chimney backdrafts, how many inches must the chimney be constructed above the highest point of the roof?
The major cause of lead poisoning in children is primarily due to which of the following?
A county or regional landfill should provide enough area for what period of operation?
When attempting to establish economical hauling, what factor is most important?
How are survey meters typically measured?
What is the maximum acceptable turbidity of water treated through slow sand filtration?
Vehicleborne, vectorborne or airborne are all examples of:
Is it true that a serial distribution system is considered to have disadvantages compared to distribution boxes?
If a soil is saturated for extended periods, what is likely indicated by its coloration?
Which of the following is an appropriate action for a witness to take when faced with an ambiguous question during a trial?
Are generic effects from radiation exposure usually immediately evident?
If a stream's water is at 20 degrees C and has nine mg/L of oxygen, what can be inferred?
Which of the following is a symptom of pesticide exposure?
What type of injury from microwave exposure is the best understood?
Swimming pool water that is brownish black in color may be due to:
What is an essential requirement for septic tank systems serving private homes?
How should clear water be disinfected using 5% household bleach?
Which agency is primarily responsible for safeguarding public health in the United States?
Which type of prevention focuses on preventing the progression of a disease?
What was perhaps the first indication of health problems associated with exposure to ionizing radiation?
What does the Safe New Alternatives Policy program (SNAP) do?
In a trial, what is expected of a technical person when called as a witness?
What is the primary source of lead poisoning today?
How frequently should water in wading pools be completely recirculated?
The dose-response relationship of a toxic substance depends on all of the following except the:
Does the prevention of deaths from a particular disease increase overall life expectancy in direct proportion to its decreased mortality?
What factor can lead to foodborne illness related to listeriosis?
Which compound would not contribute to water hardness?
When examining road cuts, stream embankments, and/or building excavations, the information obtained about soils is:
What is described as the doing of an authorized act in an unauthorized manner?
Is disease considered the antithesis of health, defined as "a state of physical, mental and social well-being and ability to function, and not merely the absence of illness or infirmity?"
How should the drain line of an ice machine connect to the sewer system?
Which gas is primarily responsible for the odor associated with rotten eggs?
During radium therapy, medical personnel can become unnecessarily exposed while handling which item?
The primary purpose of disinfection in water treatment is to:
The best method to eliminate swimmer's itch is to:
Minamata Disease is associated with:
How long can Ascaris ova survive in moist, warm soil?
When the median coliform MPN of water does not exceed 700 per 100 ml, this area is designated as?
Setting levels of pollutants that are intended to safeguard human health yet allow a margin of safety to protect more vulnerable segments of the population are called:
Which of the following is not ordinarily used as a rodenticide?
Which setting most frequently raises concerns about noise pollution?
What major health issue is associated with uranium mining?
Which form of chlorine is typically used for emergency disinfection of small water volumes?
According to the Freedom of Information Act, which information is not publicly available?
How can sources of pollutants be classified?
Which of the following is a main precursor of acid rain?
The greatest exposure to human-made ionizing radiation for most individuals is through:
What term is used to refer to age-related hearing loss?
What is the term for the killing of an infectious agent outside the body by chemical or physical means?
Which of the following is used to properly seal a drilled well to prevent contamination of the water supply?
What is a primary benefit of strategic planning for organizations?
Which of the following is a significant factor in hazardous waste management compliance?
Which cells can replace themselves or recover to some extent from radiation exposure if the dose is not excessive?
In large swimming pools, how far apart should inlets be located if the outlets are more than 5 feet from the end wall?
Is it true that more information is known about the effects of trace amounts of chemical carcinogens than radiation effects?
The major environmental concern associated with uranium ore milling is:
Oysters, soft-shell and hard-shell clams, mussels, lobsters, crabs, and shrimp belong to which group?
In business districts, refuse including garbage from hotels should be collected how often?
What organic compound classification refers to substances that do not break down easily in the environment?
What is the purpose of a septic tank in the sewage treatment process?
Why are fluorocarbons in the atmosphere a concern?
What is the best way to control deep fires in a sanitary landfill?
The addition of sodium bicarbonate is usually used to
Which of the following is NOT a factor considered by the WHO health goal?
In terms of safety protocols, what must workers at hazardous waste sites be informed about?
The release of genetically engineered materials to the environment is regulated by which agencies?
Which of the following is a common symptom of foodborne illness?
What will cause taste and odor in water supplies?
What is a major effect of stratospheric ozone layer depletion?
In terms of radiation safety, which standard is abbreviated as MPD?
What is Weil's disease commonly known as?
In terms of septic system maintenance, what is usually recommended to reduce environmental impact?
Which of the following best defines effective porosity or specific yield?
Vector-borne encephalitidies have replaced malaria as the major mosquito-borne disease in North America.
In which situation would you most likely find PAM?
How does the acidity-alkalinity balance in pool water affect water quality?
Which type of rock is classified as metamorphic?
What is desalination?
The only criteria gas that is colored is:
Backflow of nonpotable materials into a potable water system may occur due to which of the following?
Revenue bonds used for municipal capital improvement projects are typically paid by whom?
Which one of the following sources of noise has been declining slightly in recent years?
The average number of inspections per workday is calculated by which of the following?
What does the term "sanitation" primarily refer to in the context of environmental health?
It is recommended that a contaminated well be abandoned unless which condition is met?
Unpasteurized eggs NOT intended for immediate service should be cooked to?
Inspection report forms are primarily used to achieve what?
Hazardous wastes include:
Historically, what was the main reason for adequate water treatment in the United States?
Nosocomial infections are a recurring problem in which setting?
Which of the following is classified as "black water"?
An action authorized by law to restrict or prevent the movement of goods for the protection of public health, safety, and welfare is called?
What is one of the major risks when burning poison ivy, oak, or sumac?
Which of the following diseases can be transmitted by birds?
Which of the following statements is true regarding dioxins?
Which organization regulates bloodborne pathogens?
The degree of eutrophication of a lake is indicated by what factors?
Which method is commonly used to assess noise exposure levels in the workplace?
Which of the following is not classified as a man-made toxic substance?
Regulation of drinking water additives is the responsibility of?
Asbestosis is caused by fine silicate fibers retained in the?
What determines the pitch of a sound?
Which of the following is an example of a single dose rodenticide?
What is the backwash rate for conventional, rapid, and high rate sand filters?
What is the process called that involves the movement of water vapor into the atmosphere?
The legal authority to conduct a routine environmental health inspection is granted by whom?
Interior food service facility wall surfaces should not be made of which material?
The typical limitation of use of the septic tank absorption field system is due to?
What source do over 95% of farm families rely on for their drinking water?
Which factor contributes least to landfill site selection?
Which pesticide is derived from plants?
The Emergency Planning and Community Right-to-Know-Act requires the disclosure of all the following except for which type of chemicals?
When do OSHA regulations, other than HAZWOPER, apply to emergency response and hazardous waste operations?
What are objectives considered in relation to goals?
Which of the following is not a type of hazardous waste incinerator?
Which gas was not scheduled for phaseout by 1996 as noted in the Montreal Protocol?
A comprehensive solid waste study should include which of the following?
An employer is held liable for the torts of its employee committed within the scope of their employment. This is referred to as:
What is the best control measure for formaldehyde air pollution in the home?
The most common occupational exposure to mercury is through:
How many half-lives are needed to reduce the radioactivity of a radionuclide to about 1% of its original measurement?
What temperature range is considered satisfactory for the storage of refrigerated foods?
In unsewered areas, the responsibility for water and sewer for new subdivisions is assigned to the ____.
Why is it necessary to follow explicit procedures in an environmental health investigation ordinance?
Which of the following pest control methods is deemed legal?
Which of the following is not an alternative name for the Norway rat (Rattus norvegicus)?
The most common type of injury in a home is:
The industries least likely to be a source of sulfur dioxide pollution are:
Which factor significantly influences the design of a community’s waste disposal system?
Which of the following diseases is not typically transmitted by an insect?
Who is authorized to conduct air monitoring at uncontrolled hazardous waste sites?
Which method of addressing an asbestos hazard is considered the most expensive?
Which of the following systems is sometimes used where soil is unsuitable?
Which of the following is included in the list of toxicity priority pollutants?
Leachate containing primarily low molecular weight organic compounds are best treated by which method?
Which of the following site features is often improved for public health reasons during the selection of a public building site?
Why should hazardous wastes not be placed in an ordinary sanitary landfill?
UVA exposure has been linked to all of the following effects except:
How long should lice-infested items be stored to cause the lice to die of starvation?
What type of water makes it difficult to produce suds or rinse laundry?
Which of the following is not a type of hazardous waste incinerator?
Which method would be the least effective at controlling condensation in food preparation areas?
Which effect is generally better understood: the effects of radiation or the effects of trace chemical carcinogens?
"Acid Rain" was first identified in:
Which rodent is considered the primary reservoir for hantavirus?
What requirement was mandated by the 1984 amendment to RCRA for hazardous waste landfills?
Which of the following would most likely contain the highest proportion of PCBs?
Which of the following effects are not typically associated with the use of CAT scanners?
Which of the following is a key aspect of comprehensive planning?
Hearing loss that lasts a few hours following exposure to excessive noise is referred to as:
Which of the following is not commonly associated with the term frequency?
Areas on the windward side of mountain ranges can expect less precipitation due to the forced rising, expansion, and cooling of moving air masses. This statement is:
Which of the following is not classified as a type of hazardous waste incinerator?
Who has the responsibility for internal housekeeping and monitoring all waste discharges in terms of types and quantities?
Where should air pollution control be prioritized?
Swimming pool water clarity is measured in terms of
The NODAK system is primarily designed to?
What is the most prevalent arthropod-borne disease transmitted to humans in the US today?
Which of the following must be determined to establish the operational depth of a sanitary landfill?
Is it believed that the hazards of low-level radiation may be worse than previously predicted?
What could result from insufficient breakdown of sludge in septic systems?
Low-pressure, vacuum and cluster systems may be used?
What is the most practical method for removing nitrates from water?
In the event of a toxic spill, what is the first thing to be done?
What should be the primary goal for hazardous waste management?
Which agency developed guidelines to assess the environmental impact of housing and urban development?
The primary responsibility of food service management is?
Life expectancy serves as an indicator of what health-related factors?
According to recent statistics, how does the cancer rate for inner-city residents compare to suburban residents?
Volume reduction can be achieved by?
Salvato recommends at least one water closet for each ____ beds in a hospital or nursing home.
Do chlorofluorocarbons (CFCs) increase the amount of ozone in the atmosphere?
In terms of health effects, which UV type is most harmful to humans?
What is the required depth of earth for the final surface of a sanitary landfill?
Which is a recognized potential risk associated with global warming?
What animal has recently been associated with the largest number of rabies cases?
What public health factor is of primary importance in determining the sanitary quality of recreational waters?
Pediculosis refers to an infestation of which of the following?
After flooding and other natural disasters, vaccination is needed for
What is the maximum lift a centrifugal pump can handle effectively?
In dental x-rays, is it necessary to establish the correct exposure time for kilovoltage, milliamperage, and source-to-skin distance?
What process is primarily responsible for the breakdown of organic materials in a landfill?
If temporary shelter is necessary in an emergency, what should shelter selection consider?
What happens to practically all foods, whether canned, pickled, cured, or dried?
The primary purpose of stack testing is to?
What type of racks should be used in refrigerators to allow circulation of cold air?
Which of the following is considered biological safety equipment?
Which aspect is included in a sanitary survey of groundwater supplies?
What can lead to a reduction in the quality of available groundwater?
What is the mosquito genus responsible for the transmission of malaria?
What is the minimum amount of initial training required for those involved in hazardous waste operations at permitted TSD facilities?
According to general consensus, which chemical contaminant is considered the most widespread?
What is considered the best approach for preventing respiratory diseases in vulnerable individuals?
What contributes to the formation of the "hole in the sky" phenomenon?
How soon do symptoms from contact with poison ivy, oak, and sumac typically appear?
In water treatment, why is aeration a significant process?
A deterioration in the ozone layer of the stratosphere can lead to an increase in ultraviolet radiation reaching the Earth. Is this statement true or false?
Does adding yeast to a new septic tank speed up digestion by a factor of 2.7?
A secchi disk is used to determine:
Which of the following represents a primary gain of moving from the city to a suburban area?
An administrative process of measuring and analyzing results in relation to specific goals, objectives, aims, or targets is?
What is a common aim of solid waste management strategies?
The amount of sound energy a material can absorb depends on what?
Refuse collection frequency largely depends on the maturation time of fly eggs through larval stages. Under optimum summer temperatures, this maturation time is:
Shock loading refers to:
Scabies is an infectious disease of the skin caused by which organism?
Which food item is most commonly associated with botulism?
Fungal spores, bacterial and animal dander are examples of which type of pollutants?
When performing complete asbestos removal, which act's provisions must be strictly adhered to?
Which of the following statements about composting is accurate?
How must the fresh water supply line to the pool be configured?
Is it true that lindane and malathion are excellent liquid insecticides for bedbugs because they do not stain?
It is estimated that the number of Americans who are exposed daily to noise that has the potential to damage their hearing is:
How much sewage do residential cesspool and septic tank soil absorption systems discharge into the ground daily?
Support of household hazardous waste management is an avenue for industries to paint themselves as community leaders and defenders of the environment.
Which factor increases the chance of pollution travel?
The largest outbreak of cadmium poisoning thus far documented occurred in:
Which factor is NOT relevant when determining a safe distance between a well and a sewage disposal system?
Under FIFRA, all pesticides must be classified by what manner?
What term is used to describe toxins that attack nerves?
What does RCRA stand for?
Which of the following is NOT considered a basic principle of disease control?
A primary pollutant is defined as:
It has been estimated that waterborne diseases account for how many illnesses annually worldwide?
The ability of soil to absorb and allow water and air to pass through is not related to which of the following?
What is a common consequence of using contaminated water in food preparation?
What is considered the primary cause of disease resulting from general environmental exposure?
Which of the following is critical for the effectiveness of a biosafety program?
Which phrase most accurately describes the term endemic?
In order to implement and enforce federal Clean Air Act requirements, states must:
When is the best time to conduct bat-proofing when bats are hibernating?
The evacuation and survival of individuals in an emergency or natural disaster depends on what factor?
Which of the following is considered biological safety equipment?
Regulations for automobile emission standards began with vehicles manufactured in which year?
What is the best means of inhibiting the growth of microorganisms in fresh meat?
The random inspection approach fails to focus on what?
What is the most common form of cancer in women under age 30?
What can excessive chlorine levels in pool water cause?
What role does public awareness play in environmental health efforts?
How often should refuse be compacted during the average work day?
A problem that utility companies may face, leading to the closure of nuclear power plants, is the lack of:
Major effects on humans are caused by Los Angeles and London type smog, along with which two pollutants?
Which type of substance does the Toxic Substances Control Act aim to manage?
Which of the following is included in hazardous wastes?
Which federal law regulates underground storage tanks for hazardous substances?
To reduce lead in the solid waste stream, which source should a solid waste manager target as a major contributor?
What typically determines the amount of debt a municipality can incur?
The maximum number of pool users per 100 square feet of pool surface is typically
What is one of the most effective means of controlling bat populations?
Which type of standard is often regarded as more challenging to enforce legally?
What is the most important step in wastewater operations?
How many extra gallons of water will be required for every 1,000 new people in a community?
Which of the following factors would LEAST contribute to the emergence of a new infectious disease?
Which time of day is UV radiation exposure typically highest?
Which of the following is an essential element of a regional planning study and report?
The major route of entry of inorganic mercury into humans is through:
During which process are PCBs most likely to move through the food chain?
What is a recommended action following an inspection and written report before leaving the site?
Ozone reduces the useful life of all of the following except?
What classification of virus is primarily associated with aerosols in laboratory settings?
The total number of inspections should be divided by which parameter for effective reporting?
Standards must be scientifically supported, understandable, measurable, and?
What concentration of pollen grains per cubic meter of air is considered unlikely to produce allergic reactions?
Where does beef usually spoil first?
Which of the following is essential for maintaining the safety of frozen food?
Where is the majority of fresh water found?
What is an essential maintenance practice for avoiding septic tank system failures?
Why should both county and regional-wide planning be considered for a sanitary landfill site?
How is tularemia primarily transmitted to humans?
What do further increases in life expectancy depend on according to scientific consensus?
Which pathogen is NOT responsible for urine being non-sterile?
In an environmental control statistical report, what does "total man-days expended" refer to?
What disease is caused by an infection with Escherichia coli 0157:H7?
What is the estimated duration for the effects of greenhouse gases already in the atmosphere after emission reduction?
What is the difference between misfeasance and nonfeasance as per health standards?
What key elements must be included in an emergency response plan for uncontrolled hazardous waste sites?
Who establishes tolerance levels of pesticides?
What type of soil texture typically provides the best drainage for absorption fields?
What aspect is not covered by the Amendments to the Safe Drinking Water Act?
What is the next step when an order has been ignored?
The most common type of noise measurement device used for initial surveys is the:
To protect against salmonella growth in potentially hazardous food, what is the recommended storage temperature?
Vegetative forms of Clostridium botulinum spores are killed in:
True or False: Radiation can only come from artificial sources.
What is one of the most effective ways to improve health standards in Third World countries?
The difference between a disaster and terrorism is best described as
Is a water system serving one apartment building with three apartments, housing a total of six residents considered a Public Water Supply (PWS)?
The one of the following diseases which is caused by a virus is?
What is the primary purpose of conducting reinspections?
What is the definition of re-refined oil?
Where was the "hole in the sky" first discovered?
Indications of stream pollution may include which condition?
A comprehensive water supply study must include what essential component?
What is the key characteristic of enterotoxins?
What is the federal agency that regulates food additives?
How many ergs of air represent one roentgen?
What contaminant has been associated with learning and cognitive disorders in children who drink contaminated water?
Which of the following is a key reason for performing a physical examination on food handlers?
What is the FDA action level for aflatoxins in milk?
According to the EPA, which of the following is NOT considered solid waste?
The main focus of the Federal Resource Conservation and Recovery Act of 1976 (RCRA) is on which type of waste?
What is a primary characteristic of volcanic rocks?
Which component of clean, dry air has the smallest volume?
A chemical used to adjust pool alkalinity is:
Which statement regarding surface and groundwater is true?
What describes general obligation bonds in a municipality?
Which of the following is a characteristic of noise pollution?
High levels of particulate air pollution are associated with all of the following except:
Which disease is transmitted through a tick bite?
Which is a correct practice regarding the storage of pesticides?
If an adequate, well-sourced water supply is unavailable at a reasonable cost, what should be the next step for the site?
If groundwater is contaminated, what is the most likely source of pollution?
Comprehensive community planning includes which of the following steps?
The poison of poison ivy, oak, and sumac is an oleoresin. In which part of the plant is this oleoresin NOT found?
What hazard is associated with the size reduction method for solid waste?
According to an analysis by Dever, what percentage of deaths due to accidents is attributed to environmental factors?
Which disease can cockroaches spread?
The CDC advocates a multitier approach for environmental management of lead threats. This approach has which of the following steps?
What does the acronym USEPA stand for?
If an employer moves employees who have reached the upper permissible level of exposure to a hazardous environment, what type of hazard control is being utilized?
What fundamental needs for a quality environment are emphasized by public awareness?
Which term describes an increased concentration of pollutants due to continuous emission?
What was the first national law in the United States designed to deal with noise?
Environmental Impact Statements are required by which federal act?
Salty flavors in milk can be attributed to milk from cows infected with which condition?
"R" is the symbol used for which term?
Which of the following is least important when reducing sewage to gases?
What is one of the primary measures in integrated pest management?
What is a characteristic of a "Restricted Classification" pesticide?
Which of the following statements is true regarding bats?
Which of the following statements about noise is false?
Of the following, the most likely to succumb to cadmium poisoning are:
Which of the following is not included among the nine contaminant groups?
What is used to measure concentrations of pollutants in a given air quality model?
What does "genetic radiation" refer to?
Which substance is least damaging to the stratospheric ozone layer?
Which material is commonly used as a target material to produce x-rays and has a high melting point and a high atomic number?
Alpha particles possess which type of electric charge?
A major concern associated with Chernobyl style nuclear reactors is that:
Which animal is known to carry the disease lymphocytic choriomeningitis?
Chemical coagulation, flocculation, sedimentation, and filtration primarily remove which of the following?
A state radiation protection program may involve control of which of the following?
Pasteurized milk quality is indicated by?
All meat and poultry plants must develop and implement a system of preventative controls known as:
What is the main purpose of HACCP in food safety?
Which of the following best describes civil sanctions?
Which statement regarding identical sound levels and their effect on overall sound level is true?
What is the primary reason the pH of a pool should stay less than 8?
Which method of mosquito control is not very effective for nuisance prevention?
What is a major obstacle to compliance with the Asbestos Hazard Emergency Response Act?
In the quality of life index, which of the following is NOT included in the economic environment?
What is the easiest and least expensive method to conserve water in households?
The Monitored Retrievable Storage (MRS) concept deals with which aspect?
The green pages of the emergency response guidebook list which of the following?
Which organization is primarily responsible for radiation regulation in the United States?
How frequently should residential septic tanks be inspected?
Which amendment of the US Constitution protects a nonpublic area from unreasonable searches and seizures?
Do both female and male mosquitoes feed exclusively on blood?
Which type of waste is most closely associated with injury risks for waste collection workers?
Which vector is commonly associated with the transmission of many diseases?
What is the purpose of a septic tank in wastewater management?
Long term effects of lead poisoning include:
Which of the following is not a natural topographic feature?
What should be the priority at a waste disposal facility to ensure safety and compliance?
What primarily causes variations in infrared absorption across different climatic regions?
The speed with which emergency action can be taken is largely dependent on?
What method is used to reduce the temperature of gases leaving a furnace?
What angle of slope requires a special engineering study according to environmental standards?
When is an HACCP plan not required?
What does a high MPN (Most Probable Number) indicate in water testing?
Which term is used for the variety of processes by which water returns to the earth's surface?
What is a key environmental issue associated with the persistence of PCBs in ecosystems?
What essential action should be taken after servicing a septic tank?
What is the stance of the World Health Organization regarding the current necessity of DDT for public health?
The volume of the dose from a properly sized dosing tank should be equal to?
In which areas has photochemical smog been reported?
What is the EPA's stream quality indicator for dissolved oxygen in stream water?
Which of the following statements about x-ray units is accurate?
A hammering type noise often heard in a plumbing system is usually due to?
What factor contributed to the formation of the NEPA?
Which authority issues a certificate of compliance when a system is properly installed?
Which option is not advisable for a refuse storage area?
Which one of the following is true?
What is the primary source of funding for municipal capital improvement?
Which type of pollution primarily affects visibility in urban areas?
Which method is preferred for controlling sewage from watercraft?
A "vision" in strategic planning could be defined as:
The yellow pages of the emergency response guidebook lists which of the following?
Which type of inspection is typically conducted prior to legal action?
The Consumer Product Safety Commission requires refuse bins to withstand a hanging weight of how many pounds?
Deaths of newborns caused by milk-induced diarrhea has been mainly attributed to which bacteria?
Which one of the following crops would probably be least affected by air pollution?
What is the consequence of not ensuring proper equipment sanitation in food processing?
A CT scanner is a combination of which two machines?
Contamination in a block of ice can be identified by what characteristic in the geometric center?
Which combination represents commonly acceptable refuse disposal and treatment methods?
Which statement is true regarding transportation as a source of air pollution?
Aerobic bacteria require all of the following nutrients except?
What is the importance of having on-board holding tanks for watercraft?
Performance of an authorized act in an unauthorized manner is called:
What does the acronym HAZWOPER stand for?
In distillation, what is the starting temperature for heating sea water to the boiling point?
The most accurate estimates of sewage flow are derived from:
Which of the following should be part of a structured plan for inspection activities?
High-density compaction of solid wastes is typically achieved by compression to a density of more than what value?
What type of radiation hazard is primarily linked to ingestion or inhalation?
The minimum recommended depth of water under a 1 meter board (1 meter high) is
In a laboratory, what is the primary risk associated with mouth pipetting?
Which nation has the greatest annual rate of carbon dioxide production?
Which Act authorized the Environmental Protection Agency to collaborate with state and local governments on anti-noise programs?
What is the amount of dissolved oxygen required in aerobic bacterial decomposition called?
The detention time for wastewater in a septic tank is recommended to be how long?
The best method to reduce diving accidents is to:
Which of the following conditions has not been associated with asbestos exposure?
What is the primary reason for the decline in water tables in some groundwater dependent areas?
An Environmental Impact Statement (EIS) is required by which act when significant environmental impact is indicated?
The factor used to determine the bromine residual with the chlorine test kit (DPD) is:
What does the term ‘malfeasance’ refer to in the context of environmental health?
Venturi scrubbers, spray nozzles and packed towers are examples of what type of waste treatment methods?
What is perhaps the most important aspect of implementing programs in biosafety?
Which process is essential for removing nearly all bacteria and viruses from wastewater treatment?
Which organism is primarily responsible for carrying Lyme disease?
What must always be done with contaminated needles?
Which bacteria can survive extended storage in Cheddar cheese?
When mixing acid and water, which procedure is correct?
Which preventive measure is most critical in reducing noise pollution in work environments?
Which organism is most resistant to unfavorable environmental conditions and indicates past pollution?
Which of the following is a factor influencing the effectiveness of incineration?
Which of the following foods is NOT at high risk for transmitting listeriosis?
Which of the following is NOT an option for hazardous waste minimization?
What is the primary benefit of a footing drain?
Fluoroscopy exams should ideally be conducted before which other imaging procedure?
From which type of rocks is an abundant supply of groundwater typically yielded?
What is a major problem faced by public health professionals when setting exposure limits to TCCD?
A soil which is mottled brown and red indicates what condition?
If a health official fails to close a restaurant with imminent health dangers, what is this considered?
Which statement regarding noise is true?
An infected organism that does not show symptoms during the spread of an illness is known as a:
A certified industry inspection is defined as what type of inspection?
What is an essential benefit of following due process during an environmental health investigation?
A primary pollutant is one that is formed in the atmosphere as a result of chemical reactions. Is this statement true or false?
Septage is best defined as?
Which of the following is not part of the proper machine dishwashing procedure?
How is giardiasis USUALLY transmitted to others?
After collection, which is the correct order of steps involved in resource recovery?
Which of the following is NOT a category of hazard control?

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