Oklahoma Department of Environmental Quality
2026 Ozone
4th Highest 8-Hour Average (ppm) through October 18, 2026
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.
	2023	2024	2025	2026*	23-25	24-26*
Mannford	0.070	0.069	0.064	0.067	0.067	0.066
Tulsa East	0.078	0.069	0.066	0.070	0.071	0.068
Tulsa Central	0.075	0.070	0.066	0.071	0.070	0.069
Skiatook	0.074	0.071	0.069	0.072	0.071	0.070
Glenpool	0.072	0.071	0.063	0.067	0.068	0.067
OKC North	0.072	0.072	0.068	0.079	0.070	0.073
Moore	0.072	0.074	0.069	0.072	0.071	0.071
Choctaw	0.067	0.076	0.071	0.068	0.071	0.071
Yukon	0.073	0.072	0.066	0.078	0.070	0.072
Lawton	0.071	0.073	0.070	0.070	0.071	0.071
McAlester	0.072	0.067	0.064	0.065	0.067	0.065
Seiling	0.068	0.072	0.068	0.072	0.069	0.070
Healdton	0.077	0.078	-	-	-	-
Tishomingo	0.072	0.070	-	-	-	-
Kessler                  (McClain County)	0.074	0.076	0.066	0.071	0.072	0.071
Waurika	0.074	0.069	-	-	-	-
Oklahoma Union      (Nowata County)	0.070	-	-	0.062	-	-
Copan	-	0.071	0.067	-	-	-
Burneyville	-	-	0.074	0.060	-	-
Great Plains State Park (Kiowa County)	-	-	0.067	0.063	-	-
*All data is subject to change upon QA/QC -- data collection for the current year is ongoing.