Oklahoma Department of Environmental Quality
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2009 2013 OKLAHOMA Carbon Monoxide
Highest 8 Hour Averages (ppm) through December 31, 2013
Site  2009 2010 2011 2012 2013
   1st 2nd 1st 2nd 1st 2nd 1st 2nd 1st 2nd
Tulsa 1.50 1.30 2.20 2.00 (analyzer removed) (analyzer removed) (analyzer removed)
Site 191 1-Jul 22-Jan 3-Dec 2-Dec
         
Tulsa 1.23 1.23 1.41 1.37 1.4 1.4 1.2 1.2 1.3 1.0
Site 1127 1-Nov 11-Dec 3-Dec 19-Jan 29-Jan 25-Dec 2-Feb 30-Dec 20-Jan 2-Feb
                     
OKC         1.1 1.0 0.7 0.6 0.9 0.8
Site 1037         24-Dec 17-Dec 3-Jan 13-Jan 4-Jan 18-Jan
                     
OKC 1.40 1.10 1.10 0.70 (analyzer removed) (analyzer removed) (analyzer removed)
Site 033 31-Jan 29-Jan 14-Nov 3-Mar