The Air Quality Index (AQI), shown below, is used to report daily air quality. It tells how clean or polluted the air is. Meteorologists use the AQI to forecast the air quality on a day-to-day basis. In the Birmingham area, ozone is forecasted from April 15th to October 15th and particle pollution (PM2.5) is forecasted year-round.
|Air Quality Index||Protect Your Health|
|Good||No health impacts are expected when air quality is in this range.|
|Moderate||Unusually sensitive people should consider limiting prolonged outdoor exertion.|
|Unhealthy for Sensitive Groups||The following groups should limit prolonged outdoor exertion:
|Unhealthy||The following groups should avoid prolonged outdoor exertion:
|Very Unhealthy||The following groups should avoid all outdoor exertion:
|Hazardous||Everyone should avoid outdoor exertion.|