Chapter 4	PM2.5 Air Quality Table						Table 4-48													

PM25 (ug/m3)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Max. 24-Hr. Concentration (State)															64.3	66.3	60	53.6	239.2	67.3
Max. 24-Hr. Concentration (Nat)															64.3	66.3	60	53.6	239.2	67.3
98th Percentile of 24-Hr Conc.															35.7	32.5	40.8	36	46.9	37.4
Annual Average (State)																		15.5	14.4	14.1
Avg. of Qtrly. Means (Nat)															18	15.8	17.7	16	15.5	14.1