Oklahoma Department of Environmental Quality
2025 Ozone
4th Highest 8-Hour Average (ppm) through July 1, 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 0.062 0.069 0.067
Tulsa East 0.073 0.078 0.069 0.066 0.073 0.071
Tulsa  Central 0.073 0.075 0.070 0.062 0.072 0.069
Skiatook 0.075 0.074 0.071 0.062 0.073 0.069
Glenpool 0.070 0.072 0.071 0.062 0.071 0.068
OKC North 0.072 0.072 0.072 0.067 0.072 0.070
Moore 0.070 0.072 0.074 0.065 0.072 0.070
Choctaw 0.073 0.067 0.076 0.071 0.072 0.071
Yukon 0.069 0.073 0.072 0.063 0.071 0.069
Lawton 0.068 0.071 0.073 0.063 0.070 0.069
McAlester 0.064 0.072 0.067 0.064 0.067 0.068
Seiling 0.069 0.068 0.072 0.064 0.069 0.068
Healdton - 0.077 0.078 - - -
Tishomingo - 0.072 0.070 - - -
Kessler                  (McClain County) 0.070 0.074 0.076 0.065 0.073 0.072
Waurika - 0.074 0.069 - - -
Oklahoma Union      (Nowata County) 0.072 0.070 - - - -
Copan - - 0.071 0.066 - -
Burneyville 0.075 - - 0.069 - -
Great Plains State Park      (Kiowa County) 0.069 - - 0.061 - -
*All data is subject to change upon QA/QC -- data collection for 2025 is ongoing.