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IDEM > Monitoring > Air Monitoring > Attainment and Redesignations > The Eight-Hour National Ambient Air Quality Standards for Ozone The Eight-Hour National Ambient Air Quality Standards for Ozone

This website is dedicated to Ozone. Ozone is one of six key air pollutants that scientists have identified as being particularly harmful to humans and the environment. National health standards have been developed for the six pollutants and are used as measurements of air quality.

Ozone

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Indiana Ozone Designations

For Historical Information about Indiana's Ozone Designations please contact the Department of Environmental Management's Office of Air Quality at (800) 451-6027

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