Oklahoma Department of Environmental Quality
2026 Ozone
4th Highest 8-Hour Average (ppm) through January 25, 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	0.000	0.067	0.044
Tulsa East	0.078	0.069	0.066	0.000	0.071	0.045
Tulsa Central**	0.075	0.070	0.066	0.000	0.070	0.045
Skiatook	0.074	0.071	0.069	0.000	0.071	0.046
Glenpool	0.072	0.071	0.063	0.000	0.068	0.044
OKC North	0.072	0.072	0.068	0.000	0.070	0.046
Moore	0.072	0.074	0.069	0.000	0.071	0.047
Choctaw	0.067	0.076	0.071	0.000	0.071	0.049
Yukon	0.073	0.072	0.066	0.000	0.070	0.046
Lawton	0.071	0.073	0.070	0.000	0.071	0.047
McAlester	0.072	0.067	0.064	0.000	0.067	0.043
Seiling	0.068	0.072	0.068	0.000	0.069	0.046
Healdton	0.077	0.078	-	-	-	-
Tishomingo	0.072	0.070	-	-	-	-
Kessler                  (McClain County)	0.074	0.076	0.066	0.000	0.072	0.047
Waurika	0.074	0.069	-	-	-	-
Oklahoma Union      (Nowata County)	0.070	-	-	0.000	-	-
Copan	-	0.071	0.067	-	-	-
Burneyville	-	-	0.074	0.000	-	-
Great Plains State Park      (Kiowa County)	-	-	0.067	0.000	-	-
*All data is subject to change upon QA/QC -- data collection for 2026 is ongoing.