The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health ...

The U.S. Air Quality Index (AQI) is the Environmental Protection Agency’s tool for reporting outdoor air quality and health.

MORPC issues Air Quality Alert for Columbus due to wildfire smoke. AQI “Unhealthy for Sensitive Groups.” Limit outdoor ...

A Chicago Air Quality Alert has been extended through Friday as smoke from Canada wildfires has pushed the AQI into unhealthy ...