Chapter 4	PM2.5 Air Quality Table						Table 4-9													

PM25 (ug/m3)	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005
Max. 24-Hr. Concentration (State)														121.4	119.6	104.0	82.1	121.2	93.8	132.6
Max. 24-Hr. Concentration (Nat)														121.4	119.6	98.0	82.1	121.2	93.8	132.6
98th Percentile of 24-Hr Conc.														85.6	83.0	74.3	66.3	76.6	72.4	58.3
Annual Average (State)															24.0	25.0	25.8	24.8	16.6	21.0
Avg. of Qtrly. Means (Nat)														31.0	28.3	31.0	27.4	24.8	22.1	21.0