Appendix B	Carbon Monoxide - Maximum 8-Hour Concentration (ppm)								Table B-23											

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	7.4	6	6.3	5	5.4	4.4	5	4.4	4.5	5.4	5.4	3	3.4	3		2.5	2.5	1.8		
LAKE COUNTY					2.2	2.6	3.1													
LAKE TAHOE	16.3	12.5	13	12.5	11.3	10.1	9.2	9.9	7.5	7.1	6.3	5.1	3.8	4.3	2.4	1.9	1.9	3	1.9	4.4
MOJAVE DESERT	5.7	4.6	4	5.9	7.1	8.3	7.1	5.4	5.9	5.6	5.1	7.5	4	3.6	5.4	4.3	3.3	2.2	2.1	1.7
MOUNTAIN COUNTIES		4.2	2.3		4.6	3.5	0.1	4.5	5.4	5.4	3.4	2.6	1.9	5.5	3	1.6	4.3	1.5	1.5	5.7
NORTH CENTRAL COAST	3.3	2.3	2.3	2.4	2.4	2.5	2.5	2.9	2.7	2.1	2.1	2.6	1.8	2.2	1.8	1.4	1.6	1.4	1.1	1.2
NORTH COAST	5.5	3.1	3	1	4.5	3.5		0.6	2.4		3.2	2.7	3.2	3.5	3.7	2.6	2.3	2.5	2.2	1.8
NORTHEAST PLATEAU			10.4	1.8																
SACRAMENTO VALLEY	13.3	13.9	10	12.3	15.9	14	12.3	8.6	9.4	8.5	7.4	7.2	7.2	7.1	6.6	6.3	5.3	4.3	4.5	4.1
SALTON SEA	2.6	3.6	2.9	2.1	2.9	2.3	2.5	2.4	2	13.1	22.9	22.1	17.8	14.4	17.9	15.5	12.3	11.6	8.8	10.3
SAN DIEGO	13	10.4	9.4	10.3	10.5	9.1	7.9	7.9	7.5	7.5	6.3	7.1	5.4	4.8	6	5.9	5.1	4.7	10.6	4.1
SAN FRANCISCO BAY AREA	16.1	12.6	10	12.8	12	11	11	7.8	7.9	8.8	5.8	7	6.1	6.3	6.3	7	5.1	5.1	4.4	3.4
SAN JOAQUIN VALLEY	11	16.3	12.9	16.5	13.4	11.5	11.4	8.3	9.3	8.9	9.1	7.7	7.5	8	7.8	6.6	6	4.5	4.1	3
SOUTH CENTRAL COAST	10.5	8.6	7.5	7.4	7.4	5.8	6.4	5.9	4.8	6.5	5.8	4.9	4.1	4.6	4.2	4.3	3.4	2.4	3.7	2.6
SOUTH COAST	27.7	19.7	19.6	27.5	21.8	16.8	17.4	18.8	14.6	18.2	13.8	17.5	17.1	13.3	11.2	10.1	7.6	10.1	7.3	6.5