Health Effects

Air QualityAir Quality Index (AQIHealth Effects
Good0 to 50

No health impacts are expected when air quality is in this range.

Moderate

51 to 100

Unusually sensitive people should consider limiting prolonged outdoor exertion.

Unhealthy for Sensitive Groups

101 to 150

Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.

Unhealthy

151 to 200

Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion.

Very Unhealthy (Alert)

201 to 300

Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.

Hazardous (Alert)

301 to 500

Health alert: Everyone may experience more serious health effects.


More Information

AIRNow - Current, Local and National Air Quality Information and Forecasts