Air quality

Learn about air contaminants and the health effects of poor air quality. Also understand the causes of poor indoor air quality, how to test for it and how to improve it.

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Air contaminants

Learn about the different contaminants that can reduce air quality.

Air quality health index

Use the air quality health index to help you plan and enjoy a healthy lifestyle. .

Health effects of air pollution

Find out how air pollution can affect your health and who is at risk for getting sick.

Testing indoor air quality

Find out if testing indoor air quality is necessary when you think there might be contaminants in the air.

Improve indoor air quality

Learn how you can improve your home’s indoor air quality.

Causes of poor indoor air quality

Learn about what can lead to indoor air contaminants, such as heating appliances, temperature and humidity.

Residential Indoor Air Quality Guidelines

Read recommended exposure levels and guidance for reducing your exposure.

Road traffic and air pollution

Learn about potential health effects of air pollution from road traffic and how to minimize your exposure.

Smog and your health

Learn about smog types and sources, potential health effects and how to minimize your exposure.

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