Oklahoma Carbon Monoxide
Highest 8 Hour Averages as of 04/09/01
PPM
Site	1995	1996	1997	1998
	1st          2nd	1st          2nd	1st          2nd	1st          2nd
Tulsa	2.9           2.3	4.1           3.7	7.5           5.0	3.0           2.7
Site 191	3/18        2/17	2/21        1/10	2/01        2/01	1/30        2/08
Tulsa	4.7           4.4	7.2            6.8	8.8           6.3	4.9           3.8
Site 126	2/17        8/27	1/10         1/10	2/01        2/01	1/30        2/23
OKC	6.6           4.8	7.1            5.2	6.2           5.4	4.6           4.0
Site 047	1/11        1/21	12/13       2/21	2/01      12/15	1/30        3/22
OKC	9.4           7.3	9.2            7.9	No data	No data
Site 018	1/11        1/21	1/10         1/10
OKC	No Data	No Data	No Data	2.4           2.3
Site 025				2/07        2/06
Moore	3.2           2.8	2.8            2.7	3.8          2.6	2.3           2.1
Site 049	1/11        1/21	2/24       12/13	2/01       1/31	1/23        1/31
Lawton	3.2           3.1	1.7            1.6	1.4          1.3	1.7           1.6
Site 647	7/09        7/07	1/13         1/21	12/15   12/17	1/09        1/08