OKLAHOMA CARBON MONOXIDE
Highest 8 Hour Averages Through 12/31/2010
PPM
Site	2006	2007	2008	2009	2010
	1st          2nd	1st          2nd	1st          2nd	1st          2nd	1st          2nd
Tulsa	1.7     1.7	1.8     1.6	1.4     1.4	1.5      1.3	2.2      2
Site 191	12/6     12/7	2/22    12/5	12/6    12/7	7/1     1/22	12/3     12/2
Tulsa		2.18     1.80	1.42     1.26	1.23     1.23	1.41     1.37
Site 1127		1/26      1/3	1/27     1/12	11/1     12/11	12/3     1/19
OKC	2.1    1.9	2.3     2.1	Monitor Removed	Monitor Removed	Monitor Removed
Site 047	1/3   1/2	2/22   11/18
OKC			1.1     1.0	1.4     1.1	1.1     0.7
Site 033			12/7     3/1	1/31     1/29	11/14     3/3