Appendix A	North Central Coast Air Basin - County: Santa Cruz					Table A-52														

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	0.089	0.103	0.096	0.097	0.094	0.092	0.084	0.084	0.082	0.11	0.102	0.102	0.098	0.095	0.096	0.088	0.089	0.086	0.087	0.085
Peak 8-Hour Indicator	0.071	0.082	0.077	0.074	0.072	0.072	0.069	0.066	0.064	0.093	0.087	0.087	0.079	0.077	0.078	0.073	0.074	0.072	0.074	0.073
4th High 1-Hr. in 3 Yrs	0.09	0.09	0.09	0.09	0.09	0.09	0.08	0.09	0.08	0.1	0.1	0.1	0.094	0.091	0.092	0.084	0.089	0.084	0.085	0.085
Avg. of 4th High 8-Hr. in 3 Yrs	0.064	0.069	0.066	0.067	0.062	0.061	0.06	0.058	0.066	0.073	0.072	0.062	0.066	0.067	0.068	0.066	0.066	0.065	0.064	0.065
Maximum 1-Hr. Concentration	0.08	0.11	0.09	0.09	0.08	0.1	0.1	0.12	0.09	0.1	0.094	0.097	0.107	0.089	0.107	0.097	0.096	0.085	0.086	0.098
Max. 8-Hr. Concentration	0.072	0.088	0.077	0.073	0.07	0.087	0.08	0.082	0.075	0.086	0.078	0.07	0.088	0.071	0.077	0.072	0.078	0.073	0.077	0.074
Days Above State Standard	0	2	0	0	0	1	1	2	0	7	0	1	2	0	1	1	1	0	0	1
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	2	0	0	0	1	0	0	0	2	0	0	2	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)					65	51	49	49	36	102	106	152	115	113	78	106	52	74	81	72
Max. 24-Hr. Concentration (Nat)					65	51	49	49	36	102	106	152	115	113	76	103	50	72	77	70
Annual Average (State)							23.8	24.3		21.7	31.1	36.3	32.8	36.9		32.3	27.1		28	28.6
Annual Average (Nat)							23.9	24.3		21.7	31.1	36.4	32.8	37	28.5	30.9	26.2	28.7	26.8	27.3
Calc Days Above State 24-Hr Std							0	0		12	31	71	71	72		50	18		24	31
Calc Days Above Nat 24-Hr Std							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)																31.3	23.3	23.1	22.8	15
Max. 24-Hr. Concentration (Nat)																31.3	23.3	23.1	22.8	15
98th Percentile of 24-Hr Conc.																21.9	17.9	23.1	22	13.6
Annual Average (State)																	7.9	9.1	8.6	
Avg. of Qtrly. Means (Nat)																9.4	7.9	9.1	8.6	7.4

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				1.5	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1	0.8	0.8	0.8	0.8	0.9	0.9	0.8
Max. 1-Hr. Concentration				1	2	3	2	1	2	1	2.2	1.4	3	0.9	1	2	1.3	1.9	1.3	1.6
Max. 8-Hr. Concentration				1	1.3	1.3	1	1	1.2	1	1.3	0.9	1	0.7	0.9	0.8	0.8	1	0.8	0.7
Days Above State 8-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

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				0.044	0.048	0.049	0.05	0.049	0.047	0.043	0.051	0.052	0.05	0.045	0.041	0.035	0.036	0.036	0.035	0.036
Max. 1-Hr. Concentration			0.04	0.05	0.05	0.04	0.05	0.04	0.04	0.05	0.045	0.053	0.042	0.031	0.039	0.032	0.035	0.042	0.035	0.034
Max. Annual Average				0.005		0.008			0.006		0.005		0.005		0.004	0.005	0.005	0.005	0.005	

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					0.02	0.02	0.02	0.01	0.01	0.03	0.04	0.05	0.04	0.03	0.01	0.01	0.01	0.02	0.03	0.03
Max. Annual Average			0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Max. 24-Hr. Concentration			0.01	0.01	0.01	0.01	0.01	0	0.01	0.01	0.01	0.01	0	0	0.01	0	0	0.01	0.01	0.01