2002 Almanac (page 423)  Table B-10  PM10:  Maximum Annual Geometric Mean (ug/m3)																				

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								27.9	24.1	29	17.9	28.9	25.7	23.4	21	20.1	20	19.6	13.9	17.4
LAKE COUNTY									12		11	11.1	9.9	10.1	9.6	9.1	7.7			9.6
LAKE TAHOE										26	24.6			23.5	19.3		19.6	19.6	17.4	17.6
MOJAVE DESERT								33.6	38.4	38.6	36.6	35.6	30.5	24.7		25.6	25.2	14.2	27.9	19.3
MOUNTAIN COUNTIES										28.7	34.1	21.1	15.7	28.7	21.7	18.8	25	22.5	22.5	16.1
NORTH CENTRAL COAST								20.8	22.2	22.3			15.6	27.6	29.5	27.7	31.7	25.9	27.6	23.5
NORTH COAST								31	28.2	24.4	22.5	20.1	20.5	21.1	23.4	21.6	20.7	19.6	21.2	19.8
NORTHEAST PLATEAU								21.9	21.7			20.9		20.3	12.2	10.7			22.2	17.6
SACRAMENTO VALLEY								36.7	35.5	36	37.7	31.4	28.8	30	26.3	25.5	25.3	22.8	30.3	24.7
SALTON SEA*								48.5	61.1	64.9	59.8	43.7	47.2	45.3	59.6	64.7	70.2	58.6	66.4	73
SAN DIEGO								36.8	41.3	33.4	38		40	45.2	39.8	28.4	41.9	38.6	47.5	31.6
SAN FRANCISCO BAY AREA								34.6	34.4	33	31.5	29.5	25.1	24.8	22.1	22.1	23.7	22.5	25.4	23.7
SAN JOAQUIN VALLEY								60	57.3	68.5	58.1	56.6	45.3	44.3	48.9	47.6	42.3	32.1	50.3	45.4
SOUTH CENTRAL COAST								36.2	36.2	34.5	34.3	28.5	25.5	26	23.3	26.2	28.4	23.8	28.1	26.2
SOUTH COAST								81.8	81.3	66.9	65.5	62.4	58	56	51.8	52	56.3	43.3	64.9	54.6

*Salton Sea PM10 statistics exclude data from the Calexico - East site because data from this site do not represent widespread exposure.