Question

Question 12 pts

The sources of air pollution are usually discussed under which of the two following categories?

Mobile source

Non-point source

Point source

Stationary source

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Question 21 pts

Burning coal is a leading cause of the release of which toxic substance?

Mercury

CO2

Ozone

Endocrine disruptors

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Question 31 pts

In the human body, carbon monoxide (CO) _______________.

binds to hemoglobin, displacing oxygen

compromises the body's defenses against airborne particulates

concentrates in the thyroid, causing thyroid cancer

causes methemoglobinemia

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Question 41 pts

Climate change can adversly affect public health by increasing _______________.

The frequency and intensity of heat waves

The likelihood of wildfires

The likelihood of natural disasters such as hurricanes

The transmission of vectorborne diseases

All of the above

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Question 51 pts

The Paris Agreement aims to keep global temperature rise this century below _____ degrees Celsius above __________ levels.

3; current

2; current

3; pre-industrial

2; pre-industrial

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Question 61 pts

Some occupations can lead to more radiation exposure compared to others. Which of the following is NOT more at risk of radiation exposure?

Flight crew

Lumberjack

Radiologist

Uranimum miner

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Question 71 pts

Because exposure to UV radiation could lead to skin problems including melanoma, we should avoid exposure to sunlight as much as possible.

True

False

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Question 81 pts

Which of the following management of municipal solid waste is NOT commonly found in the United States nowadays?

Recyling

Combustion for energy

Open dumping

Landfill

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Question 91 pts

Indoor dust may contain harmful substances and cause harm after exposure. Which of the following is a common exposure route for infant/toddlers?

Inhalation

Dermal absorption

Ingestion

They are all common exposure routes

Answer 1

• Question 12: Air pollution sources are discussed as mobile (cars,airplanes,etc) and stationary sources (industry, power plants, etc.)
• Question 21:Burning coal produces CO₂ due to the oxidation of carbon atoms.
• Question 31:CO binds to hemoglobin, as it replaces oxygen, cells don't receive the needed amount of oxygen to work properly.
• Question 41:Global warming produces all the options but the direct effect to public health is the transmission of vectorborne diseases.
• Question 51:Paris Agreement's goal is to keep global temperature rise this century below 2°C above pre-industrial levels.
• Question 61:The occupation that can lead to a lesser radiation exposure is lumberjack, a radiologist and a uranium miner work directly with radioactive materials while a flight crew increases its dose of space radiation due to the altitude.
• Question 71:True, UV radiation damages the cell DNA so, avoiding exposure to sun light reduces the dose of received UVA radiation.
• Question 81: In United States, open dumping is now prohibited.
• Question 91: The most common exposure route is inhalation due to their playing habits.