Appendix A	North Coast Air Basin - County: Mendocino					Table A-57														

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	0.073	0.074	0.083						0.073	0.075	0.075	0.076	0.074	0.08	0.079	0.079	0.076	0.076	0.08	0.08
Peak 8-Hour Indicator	0.056	0.061	0.07						0.059	0.061	0.062	0.062	0.06	0.063	0.066	0.065	0.063	0.063	0.065	0.066
4th High 1-Hr. in 3 Yrs	0.07	0.07	0.08	0.08				0.05	0.06	0.074	0.08	0.073	0.069	0.069	0.073	0.073	0.073	0.083	0.083	0.083
Avg. of 4th High 8-Hr. in 3 Yrs	0.05	0.052	0.056	0.066				0.038	0.047	0.05	0.056	0.052	0.05	0.052	0.058	0.058	0.055	0.055	0.057	0.058
Maximum 1-Hr. Concentration	0.07	0.07	0.09	0.09				0.06	0.08	0.087	0.084	0.058	0.071	0.09	0.079	0.071	0.07	0.092	0.09	0.07
Max. 8-Hr. Concentration	0.056	0.062	0.076	0.076				0.043	0.065	0.061	0.065	0.049	0.061	0.071	0.069	0.059	0.055	0.072	0.066	0.056
Days Above State Standard	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
Days Above Nat. 8-Hr. Std.	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)				101	82	60	74	51	54	62	54	56	66	52	69	51	64	72	67	45
Max. 24-Hr. Concentration (Nat)				101	82	60	74	51	54	62	54	56	66	50	66	49	61	74	65	44
Annual Average (State)					29.7	23.7	25.4	21.9	23.2	21.9	26	24.4	23.4	22.1		23.5	25.4	22.9	22.2	20.6
Annual Average (Nat)					29.9	23.7	25.3	21.8	22.6	22.1	26.1	24.6	23.4	21.1	24.3	22.4	24.1	22.2	21.4	19.8
Calc Days Above State 24-Hr Std					40	24	17	6	13	6	13	7	6	6		6	24	12	25	0
Calc Days Above Nat 24-Hr Std					0	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)															35.6	22.3	38.3	59.7	15.6	18.5
Max. 24-Hr. Concentration (Nat)															35.6	22.3	38.3	59.7	15.6	18.5
98th Percentile of 24-Hr Conc.															26.3		27	39.7	15.2	14.4
Annual Average (State)															8.8			9.1	7.4	7
Avg. of Qtrly. Means (Nat)															8.9		8	9.1	7.4	7

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	5.2	5.2							2.4		3.2	3.4	3.3	3.1	3.6	3.4	3.3	2.6	2.3	2
Max. 1-Hr. Concentration	8	6		1				1	6		5.4	4.8	7.4	4.8	5.2	4.4	4	3.1	5.3	2.3
Max. 8-Hr. Concentration	5.5	3.1		1				0.6	2.4		3.2	2.7	3.2	3.5	3.7	2.6	2.3	2.5	2.2	1.8
Days Above State 8-Hr. Std.	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

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									0.054	0.053	0.053	0.053	0.049	0.05	0.054	0.053	0.052	0.042	0.045	0.044
Max. 1-Hr. Concentration				0.03				0.08	0.05	0.079	0.078	0.044	0.061	0.052	0.066	0.042	0.052	0.08	0.053	0.037
Max. Annual Average										0.008	0.009		0.01	0.01	0.01	0.011	0.01	0.01	0.009	0.009

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									0.01	0.01										
Max. Annual Average				0				0	0	0										
Max. 24-Hr. Concentration				0.01				0.01	0	0