Appendix B	PM10 - Annual Average of Quarters (National) (ug/m3)								Table B-12											

AIR BASIN	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002
GREAT BASIN VALLEYS						36.9	34.6	39.6	23.2	37.3	34.6	29.9	31.8	21.5	26.5	53.8	15.3	39.5	69.6	62.7
LAKE COUNTY							12.9		12.6	11.8	11.3	10.9	10.7	10.2	8.6	7.8		10.8		
LAKE TAHOE							28.1	30.7	28.3			27.1	22.5	23.4	21.6	23.4	19.9	20.4	19.8	19.9
MOJAVE DESERT						35.8	48.6	48.1	58	39.4	34.9	42.1	25.5	29	29.2	27.8	32.1	33.6	29.8	34.3
MOUNTAIN COUNTIES								40.9	47.8	37.5	18.4	34.6	28	21.8	32	25.3	27.6	26.3	33.3	28.5
NORTH CENTRAL COAST						23	25.4	23.9	24.3		21.7	31.1	36.4	32.8	37	28.5	30.9	29.9	29.4	27.7
NORTH COAST						36.2	31.4	28	25.3	21.8	22.6	24.3	26.1	24.6	23.4	21.1	24.3	22.4	24.1	22.2
NORTHEAST PLATEAU						25	24.8	23.5		23.6		22.1	30.3	13.6	12.9	11.1	26.3	22.5	19.8	18.6
SACRAMENTO VALLEY						42.8	41.9	41.7	42.3	34.7	31.8	34.5	30.1	29.8	28.6	29	38.4	27.9	30.2	30.9
SALTON SEA						60.4	89.9	80.3	69.3	47.5	53.3	48.3	71.9	73.6	77.7	66.1	77.8	95.2	86.2	81.3
SAN DIEGO						40	43.8	37.6	40.6	35.9	45.9	50.7	46.8	30	46.6	42.5	52.2	45.2	49.1	54.9
SAN FRANCISCO BAY AREA						38.3	40.8	40.4	38.3	33.7	28.8	28.3	25.7	24.9	25.8	25.1	28.7	26.8	28.9	25.4
SAN JOAQUIN VALLEY						67.4	79.3	79.3	69.9	62.9	56.3	50.1	58.2	54.1	48.2	39.9	59.5	53.1	57.4	59.2
SOUTH CENTRAL COAST						41.6	41.5	36.6	39.9	33.2	42.8	32.5	31.1	29.3	37	25	31.3	31	31.5	28.9
SOUTH COAST						94.5	93	78.2	76.1	79	72.5	65.5	68.8	62.8	65.6	50.2	72.2	59.1	63.3	58.1

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