2002 Almanac (page 427)  Table B-16  Carbon Monoxide:  Days Above State 8-Hour Standard																				

AIR BASIN	1981	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
GREAT BASIN VALLEYS	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0		0
LAKE COUNTY	0								0	0	0									
LAKE TAHOE	173	161	139	139	121	96	87	80	67	39	24	13	12	9	1	0	0	0	0	0
MOJAVE DESERT	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
MOUNTAIN COUNTIES	40					0	0		0	0	0	0	0	0	0	0	0	0	0	0
NORTH CENTRAL COAST	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
NORTH COAST				0	0	0	0	0	0	0		0	0		0	0	0	0	0	0
NORTHEAST PLATEAU							1	0												
SACRAMENTO VALLEY	7	11	6	6	12	13	5	12	22	14	9	0	2	0	0	0	0	0	0	0
SALTON SEA	0	0	0	0	0	0	0	0	0	0	0	0	0	10	17	11	15	12	13	7
SAN DIEGO	1	1	1	0	5	2	1	5	6	1	0	0	0	0	0	0	0	0	0	0
SAN FRANCISCO BAY AREA	6	15	4	8	24	8	2	4	10	4	5	0	0	0	0	0	0	0	0	0
SAN JOAQUIN VALLEY	12	9	12	7	7	13	4	5	24	10	3	0	2	0	1	0	0	0	0	0
SOUTH CENTRAL COAST	1	0	0	1	5	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
SOUTH COAST	89	79	67	79	64	58	50	73	71	50	51	39	29	27	17	26	18	13	11	6