Types of Air Pollutants
Smog and Atmospheric Chemistry
Acid Deposition
Indoor Air Pollution
Human and Environment Health
100

This is a colorless and odorless gas that is produced by incomplete combustion and can be really deadly at high levels. 

What is Carbon Monoxide?

100

This type of smog is common in warm, sunny cities like Los Angeles.

What is photochemical smog?

100

Acid rain mainly forms from sulfur dioxide and this other major pollutant.

What are nitrogen oxides?

100

This radioactive gas seeps from bedrock and is a leading cause of lung cancer in non-smokers.

What is radon?


100

Air pollution primarily affects this human body system.

What is the respiratory system?

200

These are small particles, usually from diesel engines and wildfires, that can penetrate deep into the lungs.

What is particulate matter?

200

Ground-level ozone forms when sunlight reacts with NOx and these compounds.

What are volatile organic compounds (VOCs)?

200

Acid deposition can lower the pH of these ecosystems, harming fish and amphibians.

What are lakes or freshwater ecosystems?

200

Burning biomass indoors without ventilation commonly causes this pollutant buildup.

What is particulate matter/carbon monoxide? 

200

Children, the elderly, and people with asthma are examples of this group.
 

What are sensitive populations?


300

This pollutant contributes to acid rain and is mainly released from burning coal.

What is sulfur dioxide?

300

Unlike stratospheric ozone, this type of ozone is harmful to human health.

What is tropospheric ozone?


300

This process occurs when acidic particles fall to Earth without precipitation.

What is dry deposition?

300

This building material was banned due to its link to lung disease and cancer.

What is asbestos?

300

This disease is commonly linked to long-term exposure to air pollution.

What is asthma/lung cancer?

400

A group of pollutants including NO and NO₂ that contribute to smog and acid rain.

What are nitrogen oxides?

400

This weather condition traps pollution near the ground by preventing air circulation.

What is a temperature inversion?

400

This material is often added to soils or lakes to neutralize acid rain effects.

What is limestone/calcium carbonate?

400

This indoor pollutant often comes from furniture, paints, and cleaning products. 

What are VOCs?

400

This is when acidic particles and gases (like sulfates and nitrates) settle out in the absence of moisture.

What is dry deposition?

500

These pollutants react in the atmosphere to form photochemical smog rather than being emitted directly.

What are secondary pollutants? 

500

This gas helps protect Earth from UV radiation but becomes harmful when found near the surface.

What is ozone?

500

The Clean Air Act significantly reduced acid rain by regulating emissions from this industry.

What is coal-fired power plants?

500

People in developing countries are most affected by indoor air pollution due to reliance on this fuel source.
 

What is biomass?


500

Long-term exposure to air pollutants increases the risk of this cardiovascular issue.

What is heart disease?