Appendix A	Sacramento Valley Air Basin - County: Colusa					Table A-66														

OZONE (ppm)	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
Peak 8-Hour Indicator (State)					0.095	0.097	0.094	0.097	0.098	0.091	0.089	0.087	0.084	0.09	0.088	0.087	0.078	0.075	0.078	0.079
Avg. of 4th High 8-Hr. in 3 Yrs (Nat)						0.079	0.082	0.082	0.081		0.077	0.076	0.075	0.077	0.076	0.075	0.069	0.067	0.067	0.067
Peak 1-Hour Indicator (State)					0.109	0.108	0.108	0.105	0.109	0.101	0.1	0.094	0.094	0.099	0.098	0.096	0.089	0.084	0.084	0.083
4th High 1-Hr. in 3 Yrs2					0.1	0.1	0.1	0.101	0.111	0.101	0.099	0.094	0.094	0.095	0.095	0.095	0.089	0.083	0.084	0.083
Max. 8-Hr. Concentration				0.084	0.092	0.085	0.09	0.09	0.091	0.081	0.088	0.085	0.072	0.088	0.081	0.071	0.073	0.074	0.076	0.067
Maximum 1-Hr. Concentration				0.1	0.11	0.1	0.107	0.106	0.111	0.093	0.099	0.095	0.092	0.101	0.094	0.089	0.084	0.085	0.084	0.08
Days Above State 8-Hr. Std.				5	34	14	36	21	30	13	13	15	5	23	10	1	1	2	2	0
Days Above Nat. 8-Hr. Std.				3	20	10	22	13	17	3	4	5	0	12	4	0	0	0	1	0
Days Above State 1-Hr. Std.				1	8	3	4	6	6	0	2	1	0	5	0	0	0	0	0	0

PM10 (ug/m3)	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
Max. 24-Hr. Concentration (State)	98	72	93	102	84	70	57	93	57	57	59	172	55	76	64	69	81	92	69	43
Max. 24-Hr. Concentration (Nat)	98	72	93	102	84	83	204	198	60	57	58	171	55	74	62	68	81	91	68	43
Max. Annual Average (State)		29.8	31.3		29.9	25	28.9			25.1	20			25.2				25.5		22
Max. Annual Average (Nat)	29.4	29.8	30.9	38.4	28.7	28.6	30.1	40.7	27.1	24.6	19.5	33.5	23.2	24.5	28.4	23.8	18.5	23.8	19.3	21.5
Calc Days Above State 24-Hr Std		35	35		42	20	26			12	6			7				26		0
Calc Days Above Nat 24-Hr Std		0	0	0	0	0	1	0	0	0	0	6	0	0	0	0		0		0

PM25 (ug/m3)	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
Max. 24-Hr. Concentration (State)											37	55	28	36	57	30	44.6	47.2	61	58
Max. 24-Hr. Concentration (Nat)											37	55	28	36	57	30	38	34	50	30
98th Percentile of 24-Hr Conc.											37	47	26	31	54	27	34	16	30	28
Annual Average (State)														9.6			7.3	11.2	7.9	9
Avg. of Qtrly. Means (Nat)													8	9.6			7.3	7	7.9	6.7

CARBON MONOXIDE (ppm)	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
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)	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
Peak 1-Hr. Indicator																				
Max. 1-Hr. Concentration																				
Max. Annual Average (Nat)																				

SULFUR DIOXIDE (ppm)	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
Peak 1-Hr. Indicator																				
Max. Annual Average																				
Max. 24-Hr. Concentration