IDEM Forecasts Air Quality Action Day for Tomorrow in two Southern Indiana Regions

IDEM Forecasts Air Quality Action Day for Tomorrow in two Southern Indiana Regions

INDIANAPOLIS- The Indiana Department of Environmental Management (IDEM) has forecast an Air Quality Action Day (AQAD) for Tuesday, Sept. 16, 2025, in Southeast and Southwest Indiana.

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.

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

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.

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About IDEM:IDEM ( idem.IN.gov ) implements federal and state regulations regarding the environment. Through compliance assistance, incentive programs and educational outreach, the agency encourages and aids businesses and citizens in protecting Hoosiers and our environment.