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Oklahoma Department of Environmental Quality
PM2.5 through October 20, 2021
2021 Daily 24 hour averages (g/m3)
                             
                             
Site 2018 2019 2020 1st 2nd 3rd 4th 5th 6th 7th 8th 18-20 Avg 19-21 Avg 2021
  98th % 98th % 98th % (date) (date) (date) (date) (date) (date) (date) (date) 98% 98% Critical Value
Moore (049)       46.7 39.5 37.5 33.6 29.9 28.1 28.3 26.8 22.4 23.6 62.4
  23.0 20.4 23.7 2-Aug 3-Aug 2-Apr 1-Apr 19-Feb 20-Feb 4-Aug 18-Feb      
OKC Near Road (097)   50.5 41.1 35.8 33.9 28.7 28.1 27.7 27.0 19.0 22.2 66.9
  17.5 18.9 20.7 2-Aug 3-Aug 21-Jul 4-Aug 25-Jul 2-Apr 20-Feb 1-Apr  
Glenpool (174)       79.6 45.7 34.2 33.6 33.3 27.2 26.9 26.3 20.4 21.5 68.4
  23.2 18.2 19.9 8-Mar 2-Aug 3-Aug 7-Mar 4-Mar 4-Aug 19-Feb 10-Feb      
Oklahoma Union (207)   closed 2020 2021  
  23.9 17.8 closed  
Copan (217)       50.9 46.7 40.7 37.2 35.8 35.7 35.1 32.4      
  (new in 2020) 18.8 2-Aug 1-Apr 5-Mar 3-Aug 8-Mar 2-Apr 4-Mar 1-Aug      
Healdton (297)   52.1 42.4 34.6 24.4 22.4 21.6 20.9 20.3 21.2 20.0 66.8
  24.0 15.7 24.0 7-Mar 2-Aug 3-Aug 4-Aug 18-Jun 19-Jun 25-Jul 19-Mar  
McAlester (415)       42.1 38.2 35.1 32.4 31.8 30.8 27.9 27.4 22.0 22.0 67.8
  27.2 17.1 21.6 20-Mar 2-Augt 21-Mar 4-Aug 8-Mar 22-Mar 1-Apr 5-Aug      
Ponca City (604)   79.7 51.3 45.6 45.1 37.7 37.7 37.5 36.3 20.0 25.3 66.8
  20.3 19.0 20.7 1-Apr 13-Apr 14-Apr 2-Aug 3-Aug 2-Apr 9-Apr 21-Jul  
Lawton (651)       44.7 35.5 28.8 21.6 20.8 20.5 19.3 18.5 17.7 18.1 70.8
  17.3 17.2 18.5 2-Aug 3-Aug 4-Aug 21-Jul 5-Aug 25-Jul 24-Jul 20-Feb      
Seiling (860)   41.6 34.9 29.2 28.6 27.9 20.1 20.1 18.6 17.2 17.6 72.2
  17.3 17.1 17.2 2-Aug 3-Aug 4-Aug 21-Jul 1-Aug 14-Apr 14-Apr 15-Apr  
OKC North (1037)       47.7 37.5 36.7 35.1 29.6 27.5 26.2 23.9 21.6 22.3 63.5
  21.8 21.1 21.9 2-Aug 3-Aug 1-Apr 2-Apr 29-Jan 13-Apr 21-Jul 19-Feb      
Tulsa Central (1127)   50.3 48.0 42.8 36.7 31.0 28.8 28.3 26.9 23.4 23.4 63.3
  27.0 22.5 20.7 2-Aug 8-Mar 4-Jul 3-Aug 4-Mar 4-Aug 21-Jul 5-Aug      
8th Highs are considered 98th percentile until end of year data completeness can be calculated.