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| Oklahoma Department of Environmental Quality |
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NO2 through May 1, 2024 |
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One hour daily maximum (ppb) |
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Site |
2021 |
2022 |
2023 |
1st |
2nd |
3rd |
4th |
5th |
6th |
7th |
8th |
21-23 Avg |
22-24 Avg |
2024 |
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98th % |
98th % |
98th % |
(date) |
(date) |
(date) |
(date) |
(date) |
(date) |
(date) |
(date) |
98% |
98% |
Critical Value |
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OKC Near Road (097) |
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48.0 |
44.0 |
42.0 |
42.0 |
40.0 |
39.0 |
39.0 |
39.0 |
44.0 |
41.3 |
218.0 |
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47.0 |
45.0 |
40.0 |
25-Feb |
21-Feb |
25-Feb |
31-Jan |
26-Feb |
11-Jan |
21-Feb |
25-Feb |
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OKC North (1037) |
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32.0 |
31.0 |
31.0 |
31.0 |
31.0 |
30.0 |
29.0 |
28.0 |
39.0 |
33.7 |
230.0 |
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44.0 |
44.0 |
29.0 |
19-Feb |
29-Jan |
31-Jan |
20-Feb |
20-Feb |
10-Jan |
20-Feb |
29-Jan |
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Tulsa Central (1127) |
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36.0 |
33.7 |
32.4 |
31.1 |
30.9 |
30.1 |
29.5 |
29.0 |
38.1 |
34.3 |
229.2 |
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40.5 |
40.5 |
33.3 |
25-Feb |
25-Feb |
19-Feb |
18-Jan |
18-Feb |
18-Feb |
16-Jan |
25-Feb |
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8th
Highs are considered 98th percentile until end of year data completeness can
be calculated. |
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All
data is subject to change upon QA/QC by DEQ and EPA |
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