Oklahoma Department of Environmental Quality
2020 OKLAHOMA Ozone
Highest 8 Hour Averages
(ppm)
through December 31, 2020
Site
1st
2nd
3rd
4th
17-19
Avg
18-20
Avg
2020
(0.070)
2017 4th
2018 4th
2019 4th
(date)
(date)
(date)
(date)
4th Highs
4th Highs
Critical value
Tulsa West
(144)
0.068
0.067
0.066
0.062
0.066
0.065
0.078
0.064
0.069
0.066
1-May
8-Jun
9-Apr
8-Apr
Tulsa East
(178)
0.066
0.063
0.062
0.059
0.067
0.065
0.076
0.064
0.070
0.067
8-Apr
24-Jun
3-Jul
1-May
Tulsa
Central
(1127)
0.079
0.064
0.059
0.058
0.067
0.065
0.074
0.062
0.073
0.066
24-Jun
1-May
8-Apr
9-Apr
Tulsa North
(226)
0.067
0.065
0.063
0.062
0.067
0.066
0.076
0.064
0.073
0.064
24-Jun
1-May
9-Apr
5-Jun
Tulsa South
(174)
0.064
0.063
0.063
0.061
0.065
0.064
0.082
0.065
0.067
0.064
1-May
24-Jun
9-Apr
4-Jul
OKC North
(1037)
0.074
0.073
0.070
0.069
0.069
0.069
0.075
0.071
0.072
0.066
3-Sep
30-Aug
28-Aug
17-Jun
OKC Central
(033)
closed
0.069
0.067
0.072
closed
Moore
(049)
0.067
0.064
0.064
0.063
0.068
0.066
0.078
0.070
0.071
0.064
17-Jun
18-May
28-Aug
30-Aug
Goldsby
(1073)
closed
0.069
0.068
0.070
closed
Choctaw
(096)
0.066
0.065
0.063
0.062
0.068
0.065
0.079
0.070
0.069
0.065
17-Jun
1-May
30-Aug
28-Aug
Yukon
(101)
0.065
0.064
0.062
0.062
0.070
0.067
0.072
0.069
0.076
0.065
17-Jun
30-Aug
7-May
13-Jun
Lawton
(651)
0.065
0.065
0.064
0.064
0.068
0.067
0.075
0.067
0.072
0.066
23-Aug
29-Aug
14-Jun
17-Aug
McAlester
(415)
0.059
0.058
0.057
0.057
0.065
0.064
0.078
0.061
0.069
0.066
1-May
29-Feb
25-Mar
30-Aug
Seiling
(860)
0.065
0.063
0.061
0.061
0.067
0.065
0.078
0.066
0.073
0.062
1-Jul
28-Aug
14-Jun
15-Jun
Copan
(217)
0.063
0.063
0.062
0.062
0.064
closed
closed
8-Apr
1-May
13-Jun
18-Jun
Burneyville
(300)
closed
2019 — 2020
0.077
0.075
closed
Waurika
(671)
closed
2019 — 2020
0.068
0.076
closed
Durant
(380)
closed
2019 — 2020
0.064
0.067
closed
Healdton
(297)
0.070
0.069
0.068
0.067
closed
closed
0.065
17-Jun
6-Aug
7-Oct
1-May
Tishomingo
(324)
0.069
0.069
0.068
0.067
closed
closed
0.059
1-May
14-Oct
25-Mar
17-Jun
Oklahoma Union
(207)
closed
2020 — 2021
(new in 2018)
0.066
0.064