Oklahoma Department of Environmental Quality
2025 Ozone
4th Highest 8-Hour Average (ppm) through December 2, 2025
Standard: 3-year average of 4th highest daily maximum 8-hour concentrations shall not exceed 0.070 ppm
Site 4th Highest 8-hour Values 3-Yr Avg.
  2022 2023 2024 2025* 22-24 23-25*
Mannford 0.070 0.070 0.069 0.064 0.069 0.068
Tulsa East 0.073 0.078 0.069 0.066 0.073 0.071
Tulsa  Central 0.073 0.075 0.070 0.066 0.072 0.070
Skiatook 0.075 0.074 0.071 0.069 0.073 0.071
Glenpool 0.070 0.072 0.071 0.063 0.071 0.069
OKC North 0.072 0.072 0.072 0.068 0.072 0.071
Moore 0.070 0.072 0.074 0.069 0.072 0.072
Choctaw 0.073 0.067 0.076 0.071 0.072 0.071
Yukon 0.069 0.073 0.072 0.066 0.071 0.070
Lawton 0.068 0.071 0.073 0.070 0.070 0.071
McAlester 0.064 0.072 0.067 0.064 0.067 0.068
Seiling 0.069 0.068 0.072 0.068 0.069 0.069
Healdton - 0.077 0.078 - - -
Tishomingo - 0.072 0.070 - - -
Kessler                  (McClain County) 0.070 0.074 0.076 0.066 0.073 0.072
Waurika - 0.074 0.069 - - -
Oklahoma Union      (Nowata County) 0.072 0.070 - - - -
Copan - - 0.071 0.067 - -
Burneyville 0.075 - - 0.074 - -
Great Plains State Park      (Kiowa County) 0.069 - - 0.067 - -
*All data is subject to change upon QA/QC -- data collection for 2025 is ongoing.