Air Quality Index

The intervals and the terms describing the AQI air quality levels are as follows: The Air Quality Index (AQI) was developed by the U.S. Environmental Protection Agency (EPA) to provide easy to understand information about daily levels of air pollution. The Georgia Environmental Protection Division uses the AQI to report daily air quality levels in metro Atlanta. When the following day's AQI is projected to rise over 100, a Smog Alert is issued for that day.