Oklahoma Department of Environmental Quality
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2007 ― 2011 OKLAHOMA Carbon Monoxide
Highest 8 Hour Averages (ppm) through 12/31/2011
Site  2007 2008 2009 2010 2011
  1st          2nd 1st          2nd 1st          2nd 1st          2nd 1st          2nd
Tulsa 1.8     1.6 1.4     1.4 1.5     1.3 2.2        2 Monitor Removed
Site 191 2/22    12/5 12/6    12/7 7/1     1/22 12/3     12/2  
           
Tulsa 2.18   1.8 1.42   1.26 1.23      1.23 1.41     1.37 1.4     1.4
Site 1127 1/26    1/3 1/27   1/12 11/1     12/11 12/3     1/19 1/29     12/25
           
OKC 2.3     2.1 Monitor Removed Monitor Removed Monitor Removed Monitor Removed
Site 047 2/22   11/18        
           
OKC   1.1     1.0 1.4      1.1 1.1       0.7 Monitor Removed
Site 033   12/7     3/1 1/31     1/29 11/14     3/3  
           
OKC         1.1    1.0
Site 1037         12/24    12/17