Ozone Alert! Program Data and Monitoring
Tulsa Area Ozone Trend

Ozone Alerts Exceedances of the 8hr standard Exceedances of the 1hr standard Highest 8hr Avg. 4th Highest 8hr Avg.
1991-Present 1999-Present 1991-Present 1999-Present 1994-Present
DEQ Ozone Monitoring Data
Current Ozone Readings This Month's 8hr Avg Readings Last Month's 8hr Avg Readings This Month's 1hr. Avg Readings  Last Month's 1hr Avg Readings

The "Ozone Season" for the Tulsa Area is from May 1st. through the end of September. During those months the weather conditions and hydrocarbon emissions combine in such a way that ground level ozone is formed. You might say it is "cooked." Ground level ozone can reach levels deemed unsafe by the EPA. The Oklahoma Department of Environmental Quality maintains five ozone monitoring stations in the Tulsa area, as indicated on the map below. The measurements from those monitoring stations are used by the E.P.A. to determine if Tulsa County meets the requirements of the Clean Air Act.