Oklahoma Department of Environmental Quality
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2017 OKLAHOMA SO2
Highest 1 Hour Daily Highs (ppb) through December 12, 2017
   
Site          2017 Daily Max 1-hr Values   3 Year Avg of 99th Percentile
2014 2015 2016 1st 2nd 3rd 4th* 14-16 Avg 15-17 Avg 2017
99th % 99th %  99th %   (date)  (date)  (date) 99th % 99th % Critical Value
  Muskogee  (167) 52.0 22.0 4.0 2.0 42 27 149
48.0 30.0 49.0 9-Jan 8-Jan 6-Jan 1-Jan      
  Ponca City  (604)   38.0 36.0 33.0 29.0 33 29 170
40.0 31.0 27.0 7-Apr 8-Apr 12-Jun 11-Jun  
  OKC (North) (1037) 3.0 3.0 2.0 2.0 3.0 2.7 222
3.0 3.0 3.0 12-Jan 18-Oct 7-Feb 2-Mar      
  Tulsa Newblock  (175) 15.0 15.0 14.0 14.0 14 14 200
14.0 11.0 17.0 23-Feb 15-May 8-Apr 15-Apr  
  Tulsa TCWD (235) 17.0 16.0 9.0 14.0 10 12 207
8.0 9.0 12.0 12-Jul 26-Oct 9-Jul 16-Oct      
  Tulsa Central (1127) 6.2 5.2 4.6 3.8 6 6 215
5.9 8.9 4.1 20-Jan 11-Dec 8-Sep 14-May  
  Tulsa Riverside (179) 7.0 6.0 6.0 6.0 7 6 215
7.0 8.0 5.0 16-May 21-Jan 10-Feb 17-Feb      
  Oxbow/Kremlin (555) 77.0 66.0 64.0 54.0  
new in 2017 23-Jun 21-Mar 28-Sep 7-Jun  
  Fort Gibson (170) 68.0 61.0 57.0 52.0      
new in 2017 10-Jan 25-Apr 10-Feb 11-Feb      
  Pryor (188)   30.0 27.0 25.0 23.0  
new in 2017 24-Mar 21-Mar 20-Mar 10-Jul      
* 4th Highs are considered 99th percentile until end of year data completeness can be calculated.