2002 Almanac (page 425)  Table B-13  Carbon Monoxide:  Peak 8-Hour Indicator (ppm)																				

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	8.5	8.6	7.7		7.3	7.2	7	5.9	5.8	5.7	5.6	3.5	5	4.7	4.6	4	4	3.9		2.9
LAKE COUNTY	3.4								1.9	2.9	2.9									
LAKE TAHOE	15	15.6	16.1	16.1	16.4	15.5	14.9	13.2	12.6	11.9	11.1	10.2	8.7	8.3	7.8	7	5.6	5	2.3	2.1
MOJAVE DESERT	7.3	7.6	5.4	5.4	5.6	5.2	4.9	4.6	5.5	7.7	7.6	6.5	6.2	6.1	5.8	7.4	4.8	4.4	4.4	4.6
MOUNTAIN COUNTIES	15.7					4.5	4.5		4.1	4.3		2.9	2.9	2.8	2.8	2.7	2.4	5.1	5.4	5.7
NORTH CENTRAL COAST	3.8	2.9	2.7	2.6	2.4	2.6	2.5	2.5	2.5	2.5	2.5	2.5	2.4	2.3	2.2	2.1	2	2	2	1.6
NORTH COAST					5.2	5.2	3.4		4.6	4.6			2.4		3.2	3.4	3.3	3.1	3.6	3.4
NORTHEAST PLATEAU																				
SACRAMENTO VALLEY	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
SALTON SEA	3.6	3.6	3.1	2.5	2.5	2.6	2.6	2.5	2.4	2.3	2.3	2.2	2.1	17.4	18.8	17.8	17.4	15.4	15.5	14.8
SAN DIEGO	12.1	9.5	9.3	9.4	10.6	10.2	10.4	10.2	10.3	10.2	10	8.6	7.8	7.7	7.3	7.3	6.3	6.3	5.6	5.3
SAN FRANCISCO BAY AREA	14.8	14	11.9	11.9	13.9	14	13.4	10.7	11.8	12.6	12.4	11.1	9.3	8.1	7.8	7.4	6.5	6.7	6.5	7.1
SAN JOAQUIN VALLEY	17.2	15.7	13.9	13.6	13.4	13.9	13.9	14.1	13.7	13.9	13.2	11.5	10	10	10.9	9.9	9	8.3	8.5	8.3
SOUTH CENTRAL COAST	12.4	12	11.3	9.6	10.2	9.9	10.1	9	8.8	8.2	7.5	6.4	5.5	5.9	6	5.8	5	4.8	4.5	4.7
SOUTH COAST	24.1	24.1	21	20.2	21.1	21.1	21.7	21.9	22.5	21.9	19	17.7	16.5	16.7	15.6	16.1	15.4	15.4	13.7	12.6