Appendix A	Northeast Plateau Air Basin - County: Siskiyou					Table A-62														

OZONE (ppm)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Peak 1-Hour Indicator	0.076	0.078	0.081	0.082	0.083	0.082	0.084	0.081	0.073	0.075	0.074	0.075	0.074	0.078	0.078	0.081	0.08	0.085	0.083	0.082
Peak 8-Hour Indicator	0.068	0.071	0.075	0.074	0.075	0.075	0.075	0.073	0.067	0.067	0.064	0.064	0.066	0.07	0.069	0.07	0.068	0.071	0.073	0.072
4th High 1-Hr. in 3 Yrs	0.07	0.08	0.08	0.08	0.08	0.08	0.08	0.08	0.07	0.07	0.07	0.07	0.07	0.075	0.075	0.078	0.078	0.081	0.079	0.079
Avg. of 4th High 8-Hr. in 3 Yrs	0.061	0.064	0.069	0.069	0.069	0.067	0.059	0.057	0.051	0.058	0.057	0.059	0.058	0.061	0.062	0.063	0.053	0.055	0.057	0.065
Maximum 1-Hr. Concentration	0.08	0.08	0.09	0.08	0.08	0.08	0.05	0.08	0.07	0.08	0.07	0.07	0.082	0.078	0.07	0.082	0.049	0.087	0.089	0.077
Max. 8-Hr. Concentration	0.075	0.07	0.081	0.071	0.076	0.076	0.046	0.073	0.07	0.068	0.062	0.063	0.074	0.071	0.067	0.071	0.038	0.075	0.074	0.071
Days Above State Standard	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Days Above Nat. 1-Hr. Std.	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Days Above Nat. 8-Hr. Std.	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

PM10 (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)				58	59	63	60	74	60	61	46	188	40	63	51	33	33	73	31	29
Max. 24-Hr. Concentration (Nat)				92	59	63	60	74	60	61	46	188	40	66	56	53	41	86	33	32
Annual Average (State)					24.8			23.6		22.1	16				16.8			17.5	12.8	12.8
Annual Average (Nat)				25	24.8	23.5		23.6		22.1	16	13.6	12.9	11.1	17.7	13.9	14.1	18.6	13.3	13.6
Calc Days Above State 24-Hr Std					29			24		0	0				0			6	0	0
Calc Days Above Nat 24-Hr Std				0	0	0		0		0	0	0	0	0	0	0	0	0	0	0

PM2.5 (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)																				
Max. 24-Hr. Concentration (Nat)																				
98th Percentile of 24-Hr Conc.																				
Annual Average (State)																				
Avg. of Qtrly. Means (Nat)																				

CARBON MONOXIDE (ppm)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Peak 8-Hr. Indicator																				
Max. 1-Hr. Concentration			12	4																
Max. 8-Hr. Concentration			10.4	1.8																
Days Above State 8-Hr. Std.			1	0																
Days Above Nat. 8-Hr. Std.			1	0																

NITROGEN DIOXIDE (ppm)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Peak 1-Hr. Indicator																				
Max. 1-Hr. Concentration																				
Max. Annual Average																				

SULFUR DIOXIDE (ppm)	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Peak 1-Hr. Indicator																				
Max. Annual Average																				
Max. 24-Hr. Concentration