Chapter 4	San Francisco Bay Area Air Basin PM10 Air Quality Table						Table 4-16													

PM10 (ug/m3)	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
Max. 24-Hour Concentration							146	150	173	155	112	101	97	74	76	95	92	114	76	109
Max. Avg. of Quarters							38.3	40.8	40.4	38.3	33.7	28.8	28.6	28.4	24.9	25.8	25.1	28.7	26.8	28.9
Calc Days Above State 24-Hr Std							123	137	93	125	108	59	54	42	18	20	25	63	42	51
Calc Days Above Nat 24-Hr Std							0	0	4	1	0	0	0	0	0	0	0	0	0	0