2002 Almanac (page 204)  Table 4-39  Sacramento Valley Air Basin:  Carbon Monoxide Air Quality Table																				

CARBON MONOXIDE (ppm)	1981	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
Peak 8-Hr. Indicator	12.9	13.4	13.2	13	13.2	14.6	14.4	13.4	14	14.7	14.8	12.9	10.7	9.6	9.3	8.5	7.7	7.3	7	7
Max. 1-Hr. Concentration	17	17	19	18	17	20	15	17	18	17	15	14	12	10.8	9.8	8.7	9.5	7.9	7.7	10
Max. 8-Hr. Concentration	13.5	15.1	14.1	12.4	13.3	13.9	10	12.3	15.9	14	12.3	8.6	9.4	8.4	7.4	7.2	7.2	7.1	6.6	6.3
Days Above State 8-Hr. Std.	7	11	6	6	12	13	5	12	22	14	9	0	2	0	0	0	0	0	0	0
Days Above Nat. 8-Hr. Std.	7	9	4	5	12	12	3	9	22	12	6	0	0	0	0	0	0	0	0	0