Environmental Health Midterm Exam
Questions and Answers | Latest
Version | 2025/2026 | Correct & Verified
What is environmental exposure assessment used for?
✔✔ To determine who is exposed to hazards and how
What does safe housing contribute to environmental health?
✔✔ Reduced disease and injury risks
What is lead exposure most commonly linked to?
✔✔ Neurological and developmental problems
Why is lead particularly dangerous to children?
✔✔ It affects brain development
What is environmental contamination?
✔✔ The presence of harmful substances in the environment
What is potable water?
✔✔ Water that is safe to drink
Why is untreated water unsafe?
1
,✔✔ It may contain pathogens and chemicals
What is wastewater reuse?
✔✔ Using treated wastewater for non-drinking purposes
What is the purpose of water quality testing?
✔✔ To ensure water is safe for use
What is an environmental exposure route?
✔✔ The way a hazard enters the body
Name one common exposure route.
✔✔ Inhalation
What is inhalation exposure?
✔✔ Breathing in harmful substances
What is ingestion exposure?
✔✔ Swallowing contaminated food or water
What is dermal exposure?
✔✔ Absorption through the skin
2
,What is a contaminant of emerging concern?
✔✔ A newly identified environmental pollutant
What are microplastics?
✔✔ Very small plastic particles in the environment
Why are microplastics a health concern?
✔✔ They can enter food and water
What is indoor mold growth usually caused by?
✔✔ Excess moisture
What is dampness in buildings associated with?
✔✔ Respiratory health problems
What is environmental toxicology?
✔✔ Study of harmful effects of chemicals in the environment
What is dose in environmental health?
✔✔ The amount of a substance a person is exposed to
3
, Why is dose important in health risk?
✔✔ Higher doses usually increase harm
What is bioaccumulation?
✔✔ Build-up of chemicals in organisms over time
What is biomagnification?
✔✔ Increase of toxins up the food chain
What is environmental noise measured in?
✔✔ Decibels
Why is prolonged noise exposure harmful?
✔✔ It damages hearing and increases stress
What is thermal pollution?
✔✔ Release of excess heat into the environment
How does thermal pollution affect water bodies?
✔✔ It reduces oxygen levels
What is environmental epidemiology?
4
Questions and Answers | Latest
Version | 2025/2026 | Correct & Verified
What is environmental exposure assessment used for?
✔✔ To determine who is exposed to hazards and how
What does safe housing contribute to environmental health?
✔✔ Reduced disease and injury risks
What is lead exposure most commonly linked to?
✔✔ Neurological and developmental problems
Why is lead particularly dangerous to children?
✔✔ It affects brain development
What is environmental contamination?
✔✔ The presence of harmful substances in the environment
What is potable water?
✔✔ Water that is safe to drink
Why is untreated water unsafe?
1
,✔✔ It may contain pathogens and chemicals
What is wastewater reuse?
✔✔ Using treated wastewater for non-drinking purposes
What is the purpose of water quality testing?
✔✔ To ensure water is safe for use
What is an environmental exposure route?
✔✔ The way a hazard enters the body
Name one common exposure route.
✔✔ Inhalation
What is inhalation exposure?
✔✔ Breathing in harmful substances
What is ingestion exposure?
✔✔ Swallowing contaminated food or water
What is dermal exposure?
✔✔ Absorption through the skin
2
,What is a contaminant of emerging concern?
✔✔ A newly identified environmental pollutant
What are microplastics?
✔✔ Very small plastic particles in the environment
Why are microplastics a health concern?
✔✔ They can enter food and water
What is indoor mold growth usually caused by?
✔✔ Excess moisture
What is dampness in buildings associated with?
✔✔ Respiratory health problems
What is environmental toxicology?
✔✔ Study of harmful effects of chemicals in the environment
What is dose in environmental health?
✔✔ The amount of a substance a person is exposed to
3
, Why is dose important in health risk?
✔✔ Higher doses usually increase harm
What is bioaccumulation?
✔✔ Build-up of chemicals in organisms over time
What is biomagnification?
✔✔ Increase of toxins up the food chain
What is environmental noise measured in?
✔✔ Decibels
Why is prolonged noise exposure harmful?
✔✔ It damages hearing and increases stress
What is thermal pollution?
✔✔ Release of excess heat into the environment
How does thermal pollution affect water bodies?
✔✔ It reduces oxygen levels
What is environmental epidemiology?
4
