Appendix B	PM2.5 Average of Quarterly Means (State)								Table B-19											

AIR BASIN	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005
GREAT BASIN VALLEYS																5.5				
LAKE COUNTY																4.1	6.3	4.4	4.4	4.8
LAKE TAHOE														8.3	7.8	8.2		7.2		
MOJAVE DESERT														11.2		11.5	13.9	9.4	10.8	8.9
MOUNTAIN COUNTIES														11.1	9.0	8.1	9.9	8.6	11.7	10.6
NORTH CENTRAL COAST															7.9	9.1	9.1	7.3		6.8
NORTH COAST														9.1		9.4	9.1	7.4	7.0	6.2
NORTHEAST PLATEAU															8.5					
SACRAMENTO VALLEY														17.5	15.8	11.9	15.1	15.9	16.5	13.8
SALTON SEA															11.2		15.1	11.4	16.1	15.5
SAN DIEGO																	15.5	14.4	14.1	
SAN FRANCISCO BAY AREA															11.6	12.9	14.0	11.7	11.6	11.8
SAN JOAQUIN VALLEY														23.4	23.9	20.8	24.1	24.8	18.2	22.4
SOUTH CENTRAL COAST														9.6		14.9	9.5	12.4	12.5	11.7
SOUTH COAST															24.0	25.0	25.8	24.8	16.6	21.0