Oklahoma Department of Environmental Quality
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2011 2015 OKLAHOMA Carbon Monoxide
Highest 8 Hour Averages (ppm) through December 31, 2015
Site  2011 2012 2013 2014 2015
  1st 2nd 1st 2nd 1st 2nd 1st 2nd 1st 2nd
Tulsa 1.4 1.4 1.2 1.2 1.3 1.0 1.0 0.9 1.2 1.1
Site 1127 29-Jan 25-Dec 2-Feb 30-Dec 20-Jan 2-Feb 9-Dec 12-Jan 20-Jan 27-Jan
                     
OKC 1.1 1.0 0.7 0.6 0.9 0.8 0.7 0.7 2.0 0.9
Site 1037 24-Dec 17-Dec 3-Jan 13-Jan 4-Jan 18-Jan 26-Jan 9-Dec 3-Mar 3-Mar
                     
Will Rogers Park new - 2015 1.1 0.9
Site 0097 4-Dec 28-Aug