Appendix A	Northeast Plateau Air Basin - County: Siskiyou					Table A-60														

OZONE (ppm)	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
Peak 1-Hour Indicator	0.074	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
Peak 8-Hour Indicator	0.065	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	0.072
4th High 1-Hr. in 3 Yrs	0.07	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
Avg. of 4th High 8-Hr. in 3 Yrs	0.059	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
Maximum 1-Hr. Concentration	0.08	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
Max. 8-Hr. Concentration	0.066	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
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)	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
Max. 24-Hr. Concentration (State)					58	59	63	60	74	60	61	46	188	40	63	51	33	33	73	31
Max. 24-Hr. Concentration (Nat)					92	59	63	60	74	60	61	46	188	40	66	56	53	41	86	33
Annual Average (State)						24.8			23.6		22.1	16				16.8			17.5	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
Calc Days Above State 24-Hr Std						29			24		0	0				0			6	0
Calc Days Above Nat 24-Hr Std					0	0	0		0		0	0	0	0	0	0	0	0	0	0

PM2.5 (ug/m3)	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
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)	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
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)	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
Peak 1-Hr. Indicator																				
Max. 1-Hr. Concentration																				
Max. Annual Average																				

SULFUR DIOXIDE (ppm)	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
Peak 1-Hr. Indicator																				
Max. Annual Average																				
Max. 24-Hr. Concentration