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Oklahoma Department of Environmental Quality
PM2.5 through December 31, 2020
2020 Daily 24 hour averages (g/m3)
                             
                             
Site 2017 2018 2019 1st 2nd 3rd 4th 5th 6th 7th 8th 17-19 Avg 18-20 Avg 2020
  98th % 98th % 98th % (date) (date) (date) (date) (date) (date) (date) (date) 98% 98% Critical Value
Moore (049)       43.7 36.1 32.8 28.9 26.6 25.6 25.3 23.7 19.8 22.4 63.1
  16.1 23.0 20.4 27-Jun 28-Jun 19-Sep 7-Oct 7-Mar 18-Sep 8-Oct 20-Sep      
OKC Near Road (097)   39.5 34.9 27.6 27.1 22.7 21.8 21.3 20.7 19.0 70.1
  (new in 2018) 17.5 18.9 27-Jun 28-Jun 19-Sep 5-Jul 1-Jul 7-Mar 30-Jun 27-Mar  
Glenpool (174)       44.1 30.4 25.5 23.2 22.2 22.1 20.8 19.9 20.8 20.4 65.1
  21.0 23.2 18.2 27-Jun 7-Mar 28-Jun 4-Jul 16-Dec 14-Dec 30-Jun 17-Jul      
Oklahoma Union (207)   closed 2020 2021  
  (new in 2018) 23.9 17.8  
Copan (217)       35.6 29.8 21.6 20.3 19.9 19.6 19.5 18.8      
  (new in 2020) 27-Jun 28-Jun 7-Mar 8-Apr 27-Mar 10-Apr 1-Jul 2-Jul      
Healdton (297)   54.0 31.3 30.7 29.3 25.5 25.2 24.9 24.0 18.5 21.2 66.8
  15.8 24.0 15.7 27-Jun 19-Sep 28-Jun 18-Sep 16-Jul 9-Jul 30-Jun 1-Jul  
McAlester (415)       51.6 32.1 29.9 23.0 22.6 22.2 21.7 21.6 21.1 22.0 62.2
  19.0 27.2 17.1 27-Jun 18-Sep 7-Mar 19-Sep 30-Jun 16-Jul 17-Jul 28-Jun      
Ponca City (604)   40.4 36.2 35.0 25.4 23.9 21.9 21.3 20.7 18.9 20.0 67.2
  17.4 20.3 19.0 28-Mar 27-Mar 27-Jun 1-Jul 7-Mar 17-Jul 30-Jun 16-Dec  
Lawton (651)       37.9 31.0 25.3 23.8 19.9 19.1 18.7 18.5 16.1 17.7 72.0
  13.8 17.3 17.2 27-Jun 28-Jun 19-Sep 4-Jul 20-Sep 18-Sep 3-Jul 16-Jul      
Seiling (860)   35.1 31.1 29.4 23.5 20.8 19.7 18.8 17.2 16.2 17.2 72.1
  14.2 17.3 17.1 28-Jun 20-Sep 19-Sep 27-Jun 17-Sep 18-Sep 21-Sep 16-Feb  
OKC North (1037)       39.0 34.9 33.5 25.1 24.8 24.2 23.4 21.9 20.3 21.6 63.6
  18.0 21.8 21.1 27-Jun 28-Jun 19-Sep 7-Oct 20-Sep 18-Sep 21-Sep 7-Mar      
Tulsa Central (1127)   46.2 29.2 24.4 22.9 22.6 21.9 21.4 20.7 24.7 23.4 57.0
  24.7 27.0 22.5 27-Jun 28-Jun 7-Mar 17-Jul 9-Apr 8-Mar 30-Jun 4-Jul      
8th Highs are considered 98th percentile until end of year data completeness can be calculated.