Indianapolis, IN – Parts of Indiana will face unhealthy air conditions on Thursday, September 18, 2025, as state officials extend an Air Quality Action Day due to elevated ozone levels.
According to the Indiana Department of Environmental Management (IDEM), the advisory applies to Central/East Central, Southeast, and Southwest Indiana. Air quality in these regions is forecasted to reach levels considered “unhealthy for sensitive groups,” including children, seniors, and those with respiratory conditions.
The advisory means residents in the affected regions should limit strenuous outdoor activity, especially during the afternoon and early evening when ozone levels are expected to peak. Sensitive groups may experience shortness of breath, coughing, or other respiratory issues if exposed for long periods.
IDEM recommends Hoosiers reduce emissions by avoiding unnecessary vehicle trips, delaying refueling or mowing until evening hours, and conserving electricity when possible. Air quality forecasts and live updates are available at SmogWatch.IN.gov.
This week’s alert follows a trend of late-summer ozone spikes across the state. While northern and northwest Indiana are not currently under advisory, officials note that air quality conditions can change quickly depending on weather patterns.
Residents in Indianapolis, Evansville, Bloomington, and surrounding areas within the advisory zone are urged to take precautions Thursday.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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