Chapter 4	PM10 Air Quality Table					Table 4-21														

PM10 (ug/m3)	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006
Max. 24-Hr. Concentration (State)		146	147	165	155	112	93	97	74	76	85	100	117	80	114	84	60	65	81	106
Max. 24-Hr. Concentration (Nat)		146	150	165	155	112	101	97	75	77	95	92	119	76	109	80	58	63	78	104
Max. Annual Average (State)			37.7	35.1	37.9	33.9	28.8	28.3	25.7	24.8	25.8	25.8	30.0	27.8	29.7	26.4	24.8	26.0	24.2	35.0
Max. Annual Average (Nat)		33.8	40.8	35.2	38.3	33.7	28.8	28.6	28.4	24.9	25.8	25.1	28.7	26.8	28.9	30.6	24.2	25.3	23.5	34.1
Calc Days Above State 24-Hr Std			76	70	91	53	37	36	24	12	18	18	37	42	48	24	18	25	23	77
Calc Days Above Nat 24-Hr Std			0	6	3	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0