Oklahoma Department of Environmental Quality |
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2020 OKLAHOMA SO2 |
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Highest 1 Hour Daily Highs (ppb) through December 31, 2020 |
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Site |
2020 Daily Max 1-hr Values |
3 Year Avg of 99th Percentile |
2017 |
2018 |
2019 |
1st |
2nd |
3rd |
4th* |
17-19 Avg |
18-20 Avg |
2020 |
99th % |
99th % |
99th % |
(date) |
(date) |
(date) |
(date) |
99th % |
99th % |
Critical Value |
Ponca City (604) |
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26.0 |
24.0 |
23.0 |
23.0 |
28 |
26 |
174 |
29.0 |
31.0 |
23.0 |
8-Nov |
7-Nov |
1-Mar |
4-Nov |
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OKC North (1037) |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
224 |
2.0 |
3.0 |
1.0 |
26-Jan |
28-Feb |
8-Apr |
28-Sep |
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Tulsa
Newblock (175) |
9.0 |
7.0 |
7.0 |
7.0 |
9 |
7 |
215 |
14.0 |
8.0 |
5.0 |
8-Dec |
9-Jan |
15-Feb |
22-Dec |
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Tulsa TCWD (235) |
8.0 |
7.0 |
6.0 |
5.0 |
9 |
6 |
216 |
14.0 |
6.0 |
6.0 |
29-Feb |
23-Jun |
26-Aug |
29-Apr |
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Tulsa Central (1127) |
3.5 |
2.7 |
2.0 |
1.8 |
3 |
3 |
222 |
3.8 |
3.3 |
2.6 |
27-Jan |
21-Dec |
8-Mar |
17-Sep |
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Tulsa Riverside (179) |
7.0 |
5.0 |
3.0 |
3.0 |
5 |
4 |
218 |
6.0 |
4.0 |
6.0 |
9-Jan |
8-Mar |
8-Jan |
27-Jan |
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Oxbow/Kremlin (555) |
53.0 |
36.0 |
33.0 |
32.0 |
47 |
40 |
140 |
54.0 |
43.0 |
45.0 |
14-Oct |
13-Mar |
6-May |
6-Oct |
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Fort Gibson (170) |
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19.0 |
13.0 |
11.0 |
11.0 |
30 |
16 |
190 |
52.0 |
31.0 |
7.0 |
11-Jun |
15-Jun |
13-Jun |
14-Jun |
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Pryor (188) |
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19.0 |
19.0 |
17.0 |
15.0 |
22 |
19 |
187 |
25.0 |
25.0 |
16.0 |
27-Apr |
8-Aug |
2-Feb |
21-Apr |
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* 4th Highs are
considered 99th percentile until end of year data completeness can be
calculated. |
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