IDEM Extends Air Quality Action Day Forecast through Friday for Five Indiana Regions

Written from press release

INDIANAPOLIS — The Indiana Department of Environmental Management (IDEM) has extended the Air Quality Action Day forecast through Friday, June 21, 2024, for five regions across the state due to elevated ozone levels.

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

  • Central/East Central Indiana: Bloomington, Brookville, Columbus, Frankfort, Indianapolis, Greensburg, Kokomo, Lebanon, Martinsville, Muncie, Richmond, and surrounding cities.
  • Northwest Indiana: Crown Point, Gary, Hammond, Kentland, LaPorte, Michigan City, Portage, Rensselaer, Valparaiso, and surrounding cities.
  • Southeast Indiana: Brownstown, Corydon, Jeffersonville, Madison, New Albany, Salem, Versailles, and surrounding cities.
  • Southwest Indiana: Bedford, Bloomfield, Evansville, Huntingburg, Mount Vernon, Paoli, Princeton, Rockport, Tell City, Vincennes, and surrounding cities.
  • Western/West Central Indiana: Crawfordsville, Covington, Delphi, Fowler, Greencastle, Lafayette, Newport, Monticello, Spencer, Sullivan, Terre Haute, and surrounding cities.

The forecast extension comes as high temperatures are expected to reach the 90s again tomorrow across Indiana. The combination of high temperatures, slightly lower humidity in the afternoon, and light variable winds may lead to ozone levels reaching the Unhealthy for Sensitive Groups range. A persistent high-pressure dome over the eastern United States has contributed to these elevated ozone levels.

Hoosiers are encouraged to 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;
  • 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, visit idem.IN.gov/openburning/laws-and-rules.

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