Another ozone alert day issued for Saturday

From Local Sources

INDIANAPOLIS — The Indiana Department of Environmental Management has issued an Air Quality Action Day and is forecasting high ozone levels for Saturday in Southwest Indiana.

Counties included in the action day are: Dubois, Daviess, Gibson, Greene, Knox, Perry, Pike, Posey, Spencer, Vanderburgh and Warrick.

The alert also includes Vigo County in Central Indiana.

Ground-level ozone is formed when sunlight and hot weather bake vehicle exhaust, factory emissions and gasoline vapors. Ozone in the upper atmosphere blocks ultraviolet radiation, but ozone near the ground is a lung irritant that can cause coughing and breathing difficulties.

Anyone sensitive to changes in air quality may be affected when ozone levels are high. Children, the elderly and anyone with heart or lung conditions should reduce or avoid exertion and heavy work outdoors.

IDEM encourages everyone to help reduce ozone by making simple changes to their daily habits, such as walking, biking, carpooling or using public transportation. The agency also encourages people to avoid using the drive-thru and combine errands into one trip, avoid refueling your vehicle or using gasoline-powered lawn equipment until after 7 p.m., turn off your engine when idling for more than 30 seconds, and conserve energy by turning off lights or setting the air conditioner to 75 degrees or above.

To learn more about ozone or sign up for air quality forecasts, visit or download the Smog Watch iPhone App.


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