Air Quality Health Index

The Air Quality Health Index (AQHI) helps you understand what the air quality around you means to your health.

The AQHI is a tool that relates the air quality outside to your health, using a scale from 1 to 10. The lower the number, the lower the risk.

Air Quality Health Index colour scale; 1 to 3, Low Risk; 4 to 6, Moderate Risk; 7 to 10, High Risk; 10+, Very High Risk

Learn More About AQHI

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About the AQHI

Learn more about the Air Quality Health Index, and how you can use it to determine your level of health risk on a given day.

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Air Quality and Health

Discover the impact of air pollutants on human health, and what you can do to protect yourself and reduce air pollution.

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AQHI Resources

Access AQHI applications, educational and media resources, videos and more!


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Updated: Apr 17, 2018