Air Quality Action Day extended to Thursday in three Indiana regions

The Indiana Department of Environmental Management (IDEM) has extended the forecast of an Air Quality Action Day (AQAD) through Thursday, Sept. 18, 2025.

Ozone levels are expected to be in the Unhealthy for Sensitive Groups range (Orange) in the following areas:

Southeast Indiana, including the cities of: Brownstown, Corydon, Jeffersonville, Madison, New Albany, Salem, Versailles and all other cities within the area.

Southwest Indiana, including the cities of: Bedford, Bloomfield, Evansville, Huntingburg, Mount Vernon, Paoli, Princeton, Rockport, Tell City, Vincennes and all other cities within the area.

Central/East Central Indiana, including the cities of: Bloomington, Brookville, Columbus, Frankfort, Indianapolis, Greensburg, Kokomo, Lebanon, Martinsville, Muncie, Richmond and all other cities within the area.

Continued unseasonably warm temperatures combined with low humidity, sunny skies and light wildfire smoke are expected to contribute to elevated ozone levels that are forecast to reach the Unhealthy for Sensitive Groups (USG) range.

Hoosiers can visit SmogWatch.IN.gov to:

View air quality information for all Indiana counties, including a state map of affected counties;

Learn more about Air Quality Action Days and recommended actions;

Learn more about ozone and fine particulate matter; and

Sign up for air quality alerts.

Air Quality Action Days are in effect from midnight to 11:59 p.m. (24-hours) on the specified date. Some municipalities have additional open burning restrictions on AQADs. For more information, go to idem.IN.gov/openburning/laws-and-rules.

Note: IDEM forecasts are based, solely or in part, on data from air quality monitors located throughout the state. Air quality information for all Indiana counties can be found at SmogWatch.IN.gov.