Oklahoma Department of Environmental Quality
	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	1.36     1.35
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					1.0     0.9
Site 1037					12/24    12/17