MPH Comprehensive Exam 2026 – Study Guide and Practice Questions
Radon is a radioactive gas released from soil and rocks and is a carcinogen implicated in lung
cancer. The radon mitigation system includes which of the following?
a. Gravel
b. Plastic sheeting sealing and caulking
c. Vent pipe
d. Junction box
e. All of the above - correct answer ✔✔ E. All of the above
For purposes of a risk assessment how do you characterize the at-risk population?
a. Geography/location
b. Proximity to a specific location
c. Birth cohort
d. All of the above - correct answer ✔✔ D. All of the above
The effects of exposure are influenced by individual susceptibility, which depends on age,
developmental stage, nutrition, and social support. Pollutants in the indoor environment are
potentially more hazardous to children than adults because their lungs are still growing and
maturing; younger children breathe more air than older children or adults, and they spend
more time indoors. Which of the following approaches will you consider in reducing indoor air
pollutions?
a. Eliminating or controlling the sources of pollution
b. Ventilation with outdoor air to dilute and remove pollutants
c. Air cleaning by air filters and ionizers to remove pollutants
d. All of the above
e. A and b only - correct answer ✔✔ D. All of the above
,Cigarette smoking during pregnancy has been associated with congenital anomalies. Which of
the following statements describe(s) the role of smoking during pregnancy and children's
health?
a. Children whose mothers smoke have more respiratory problems than children whose
mothers do not
b. Pneumonia and hospitalization in the first year of life are more frequent in children whose
mothers smoke
c. Infant mortality is higher in children born to women who smoked during pregnancy than in
children of nonsmokers
d. Infants of mothers who smoke have higher risk of SIDS than infants of mothers who do not
e. All of the above - correct answer ✔✔ E. All of the above
Power plants, factories, and vehicles spew out harmful gases and small particles that can
penetrate deep into human lungs, causing health problems. In strong sunlight, oxides of
nitrogen from vehicle exhaust fumes form ozone at ground level, which can trigger asthma
attacks. Which of the following constitute major outdoor pollutants that can have an adverse
effect on human health?
a. Particulate matter
b. Ozone
c. Carbon monoxide
d. All of the above
e. A and c only - correct answer ✔✔ D. All of the above
Parental smoking and indoor and outdoor air pollutants have been associated with childhood
asthma, and asthma is one of the leading causes of chronic disease among children. Which of
the following is (are) indicative of increase in asthma severity among children with the
condition?
a. Frequency and intensity of asthma attack
b. Number of ER visits during the year
, c. All of the above
d. A and b only - correct answer ✔✔ C. All of the above
An estimated 4,000 toxic substances have been isolated in cigarette smoke. Some of these
substances are clearly termed toxic and others as carcinogens. Which of the following
substances in cigarette smoke have been categorized as carcinogenic?
a. Benzo (a) pyrene
b. N-Nitrosodimethylamine
c. Cadium
d. All of the above
e. A and c only - correct answer ✔✔ D. All of the above
The primary method used to predict movement of substances in environmental media is:
a. Actual measurements of air and water pollutants at various places in the environment
b. Exposure models
c. Tagging pollutants with radioactive tracers and measuring the radioactivity at various times
and locations within the environmental media
d. None of these - correct answer ✔✔ B. Exposure models
The clinical features of CO poisoning are highly variable, and symptoms vary from mild to very
severe. As an environmental health specialist for the county's health department, you are at a
scene with individuals exposed to CO. Which of the following manifestations would you expect
to observe?
a. Dizziness, fatigue dyspnea
b. Vomiting
c. Irritability
d. Unconsciousness/coma
e. All of the above - correct answer ✔✔ E. All of the above
Radon is a radioactive gas released from soil and rocks and is a carcinogen implicated in lung
cancer. The radon mitigation system includes which of the following?
a. Gravel
b. Plastic sheeting sealing and caulking
c. Vent pipe
d. Junction box
e. All of the above - correct answer ✔✔ E. All of the above
For purposes of a risk assessment how do you characterize the at-risk population?
a. Geography/location
b. Proximity to a specific location
c. Birth cohort
d. All of the above - correct answer ✔✔ D. All of the above
The effects of exposure are influenced by individual susceptibility, which depends on age,
developmental stage, nutrition, and social support. Pollutants in the indoor environment are
potentially more hazardous to children than adults because their lungs are still growing and
maturing; younger children breathe more air than older children or adults, and they spend
more time indoors. Which of the following approaches will you consider in reducing indoor air
pollutions?
a. Eliminating or controlling the sources of pollution
b. Ventilation with outdoor air to dilute and remove pollutants
c. Air cleaning by air filters and ionizers to remove pollutants
d. All of the above
e. A and b only - correct answer ✔✔ D. All of the above
,Cigarette smoking during pregnancy has been associated with congenital anomalies. Which of
the following statements describe(s) the role of smoking during pregnancy and children's
health?
a. Children whose mothers smoke have more respiratory problems than children whose
mothers do not
b. Pneumonia and hospitalization in the first year of life are more frequent in children whose
mothers smoke
c. Infant mortality is higher in children born to women who smoked during pregnancy than in
children of nonsmokers
d. Infants of mothers who smoke have higher risk of SIDS than infants of mothers who do not
e. All of the above - correct answer ✔✔ E. All of the above
Power plants, factories, and vehicles spew out harmful gases and small particles that can
penetrate deep into human lungs, causing health problems. In strong sunlight, oxides of
nitrogen from vehicle exhaust fumes form ozone at ground level, which can trigger asthma
attacks. Which of the following constitute major outdoor pollutants that can have an adverse
effect on human health?
a. Particulate matter
b. Ozone
c. Carbon monoxide
d. All of the above
e. A and c only - correct answer ✔✔ D. All of the above
Parental smoking and indoor and outdoor air pollutants have been associated with childhood
asthma, and asthma is one of the leading causes of chronic disease among children. Which of
the following is (are) indicative of increase in asthma severity among children with the
condition?
a. Frequency and intensity of asthma attack
b. Number of ER visits during the year
, c. All of the above
d. A and b only - correct answer ✔✔ C. All of the above
An estimated 4,000 toxic substances have been isolated in cigarette smoke. Some of these
substances are clearly termed toxic and others as carcinogens. Which of the following
substances in cigarette smoke have been categorized as carcinogenic?
a. Benzo (a) pyrene
b. N-Nitrosodimethylamine
c. Cadium
d. All of the above
e. A and c only - correct answer ✔✔ D. All of the above
The primary method used to predict movement of substances in environmental media is:
a. Actual measurements of air and water pollutants at various places in the environment
b. Exposure models
c. Tagging pollutants with radioactive tracers and measuring the radioactivity at various times
and locations within the environmental media
d. None of these - correct answer ✔✔ B. Exposure models
The clinical features of CO poisoning are highly variable, and symptoms vary from mild to very
severe. As an environmental health specialist for the county's health department, you are at a
scene with individuals exposed to CO. Which of the following manifestations would you expect
to observe?
a. Dizziness, fatigue dyspnea
b. Vomiting
c. Irritability
d. Unconsciousness/coma
e. All of the above - correct answer ✔✔ E. All of the above
