Appendix A	Sacramento Valley Air Basin - County: Colusa					Table A-62														

OZONE (ppm)	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002
Peak 1-Hour Indicator	0.102	0.11	0.111	0.109	0.112					0.108	0.107	0.102	0.102	0.109	0.101	0.1	0.095	0.094	0.098	0.097
4th High 1-Hr in 3 Yrs	0.1	0.11	0.1	0.11	0.11				0.09	0.1	0.1	0.1	0.101	0.102	0.098	0.099	0.094	0.094	0.095	0.095
Avg of 4th Hi 8-Hr in 3 Yrs	0.078	0.08	0.082	0.085	0.085				0.073	0.078	0.079	0.082	0.082	0.082	0.077	0.077	0.076	0.075	0.077	0.076
Maximum 1-Hr. Concentration	0.09	0.11	0.11	0.11	0.12				0.1	0.11	0.1	0.107	0.106	0.111	0.093	0.099	0.095	0.092	0.101	0.094
Max. 8-Hr. Concentration	0.086	0.093	0.091	0.088	0.102				0.084	0.092	0.085	0.09	0.09	0.091	0.081	0.088	0.085	0.072	0.088	0.081
Days Above State Standard	0	12	7	12	28				1	8	3	4	6	6	0	2	1	0	5	0
Days Above Nat. 1-Hr. Std.	0	0	0	0	0				0	0	0	0	0	0	0	0	0	0	0	0
Days Above Nat. 8-Hr. Std.	1	5	4	5	21				0	3	2	2	2	4	0	1	1	0	3	0

PM10 (ug/m3)	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002
Max. 24-Hour Concentration (State)						98	72	93	102	84	70	57	93	57	57	59	172	55	76	64
Max. 24-Hr. Concentration (Nat)						98	72	93	102	84	70	57	93	57	57	58	171	55	74	62
Annual Average (State)							29.8	31.3		29.9	25	28.9			25.1	20			25.2	
Annual Average (Nat)						33.5	29.8	30.9		28.7	24.5	28.1	29.9	26.8	24.6	19.5			24.5	
Calc Days Above State 24-Hr Std							35	35		42	20	26			12	6			7	
Calc Days Above Nat 24-Hr Std						0	0	0	0	0	0	0	0	0	0	0	6	0	0	0

CARBON MONOXIDE (ppm)	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002
Peak 8-Hr. Indicator																				
Max. 1-Hr. Concentration																				
Max. 8-Hr. Concentration																				
Days Above State 8-Hr. Std.																				
Days Above Nat. 8-Hr. Std.																				

NITROGEN DIOXIDE (ppm)	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002
Peak 1-Hr. Indicator																				
Max. 1-Hr. Concentration																				
Max. Annual Average																				

SULFUR DIOXIDE (ppm)	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002
Peak 1-Hr. Indicator																				
Max. Annual Average																				
Max. 24-Hr. Concentration