Appendix B	Carbon Monoxide - Maximum 1-Hour Concentration (ppm)								Table B-22											

AIR BASIN	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
GREAT BASIN VALLEYS	16	11	9	13	12	10	11	11	13	9	10	6	8.2	6.7		4.2	15.4	3.8		
LAKE COUNTY					3	6	7													
LAKE TAHOE	23	20	19	19	17	18	14	15	13	11.6	9.5	10.4	7.7	7.5	3.2	5.4	3.1	3.8	2.4	6.1
MOJAVE DESERT	12	9	12	11	13	11	10	9	8	9.1	7.5	8.4	5.9	5.4	10.3	6	6.1	3.4	3.9	2.9
MOUNTAIN COUNTIES		6	3		6	5	1	6.2	10	9.3	9.3	4.5	6.6	6.7	4.1	5	6.2	3.7	2.5	6.5
NORTH CENTRAL COAST	6	4	5	6	5	5	4	4	4	4.6	3.2	5.5	4.4	3.8	3.8	3.5	3.3	2.3	2.8	5.5
NORTH COAST	8	6	4	1	10	9		1	6		5.4	4.8	7.4	4.8	5.2	4.4	4	3.1	5.3	2.3
NORTHEAST PLATEAU			12	4																
SACRAMENTO VALLEY	17	20	15	17	18	17	15	14	12	10.8	9.8	8.7	9.5	7.9	7.7	10	17.2	7.8	8.5	7.3
SALTON SEA	5	5	5	4	6	5	5	5	6	30.6	32	27	24	23.5	22.9	19.9	17.4	15.6	11.8	12.6
SAN DIEGO	17	16	14	17	17	18	14	14	11.4	11	9.9	12.4	9.3	10.2	9.9	9.3	8.5	8.5	12.7	6.9
SAN FRANCISCO BAY AREA	21	20	17	15	19	18	15	12	14	12	10.1	8.8	10.7	8.7	9	9.8	7.6	7.7	8.6	4.8
SAN JOAQUIN VALLEY	18	21	16	19	23	17	19	13	13	15	12	11	9.9	10.3	11.9	10.1	16	6.1	5.8	4.6
SOUTH CENTRAL COAST	17	18	14	15	11	11	9	12	9	10.7	8.9	12.6	8.2	8.5	8.2	6.2	8.3	5.7	7.2	4.7
SOUTH COAST	33	27	26	32	31	24	30	28	21	24.9	16.8	22.5	19.2	17	19	13.8	11.7	15.8	12.2	10.4