Appendix B	PM2.5 98th Percentile 24-Hour Concentration								Table B-18											

AIR BASIN	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
GREAT BASIN VALLEYS																	67.0	23.0	64.0	8.0
LAKE COUNTY																	9.4	11.3	46.3	15.1
LAKE TAHOE																21.0	22.0	26.0		19.0
MOJAVE DESERT																23.5	23.0	21.0	34.0	24.0
MOUNTAIN COUNTIES																84.0	30.0	43.0	30.0	40.0
NORTH CENTRAL COAST																25.0	21.5	23.1	22.8	14.0
NORTH COAST																27.7	21.5	29.0	39.7	15.2
NORTHEAST PLATEAU																27.0	37.0			
SACRAMENTO VALLEY															96.0	84.0	81.0	78.0	77.0	43.0
SALTON SEA																39.5	56.0	33.0	44.1	24.9
SAN DIEGO																35.7	32.5	40.8	36.0	46.9
SAN FRANCISCO BAY AREA																	55.3	56.0	57.5	37.4
SAN JOAQUIN VALLEY																120.0	108.0	96.0	80.4	56.0
SOUTH CENTRAL COAST																35.4	41.0	50.7	35.2	33.4
SOUTH COAST																85.6	83.0	74.3	66.3	76.6