Oklahoma Department of Environmental Quality
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2012 OKLAHOMA SO2
Highest 1 Hour Daily Highs (ppb) through 12/31/2012
 
Site          2012 Daily Max 1-hr Values   3 Year Avg of 99th Percentile
2009 2010 2011 1st 2nd 3rd 4th* 09-11 Avg 10-12 Avg 2012
99th % 99th %  99th % (date) (date)  (date)  (date) 99th % 99th % Critical Value
Muskogee  (167) 80 69 63 63 55 62 104
40 30 94 15-Jan 23-May 27-Jan 27-Jul      
Ponca City  (604) (new site) 51 44 41 40 n/a n/a n/a
  18-Mar 9-Nov 10-Nov 19-Apr    
Ponca City  (602) (closed) 41 40 36 34 35 n/a n/a
42 26 38 15-Mar 14-Jan 29-May 29-Apr      
OKC (North) (1037) 6.0 5.0 5.0 5.0 5.3 5.3 217
5.0 6.0 5.0 17-Nov 4-Jul 6-Aug 13-Dec    
Tulsa PARK (175)   84 60 56 54 65 62 97
63 63 68 15-Apr 22-Jan 18-Jun 16-Jan      
Tulsa TCWD (235) 38 38 25 24 32 30 161
29 33 34 2-Jan 12-Jan 23-Feb 24-Feb    
Tulsa  EDIS (501)   87 60 59 58 42 49 138
37 45 45 18-Jan 30-Jun 27-Jun 3-Jan      
Tulsa Central (1127) 25.5 20.7 16.2 15.5 21 19 186
19.4 16.9 25.3 28-Jun 4-Aug 2-Aug 29-Jul      
 
* 4th Highs are considered 99th percentile until end of year data completeness can be calculated.