Description of air quality health risks

AQI value	Description of air quality health risks
1 to 50 Good	Air pollution poses little or no risk.
51 to 100 Moderate	Air pollution may be a risk for some people who are very sensitive to air pollution.
101 to 150 Unhealthy for sensitive groups	People sensitive to air pollution may experience health effects.
151 to 200 Unhealthy	People in good health may get sick. People sensitive to air pollution may have more serious health effects.
201 to 300 Very unhealthy	Air pollution is harmful to everyone.
301+ Hazardous	Air pollution is an emergency for everyone.

AQI: air quality index.

Adapted from: Air Quality Index (AQI) Basics. United States Environmental Protection Agency, 2023. Available at: https://www.airnow.gov/aqi/aqi-basics (Accessed October 13, 2023).

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Description of air quality health risks