Chapter 4	PM2.5 Air Quality Table						Table 4-22													

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)															90.5	67.2	107.5	84.5	56.1	73.7
Max. 24-Hr. Concentration (Nat)															90.5	67.2	107.5	76.7	56.1	73.7
98th Percentile of 24-Hr Conc.																55.3	56	57.5	37.4	39.8
Annual Average (State)																11.6	12.5	13.8	11.7	11.6
Avg. of Qtrly. Means (Nat)																13.6	12.5	13.8	11.7	11.6