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

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	0.091	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
4th High 1-Hr in 3 Yrs	0.09	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
Avg of 4th Hi 8-Hr in 3 Yrs	0.065	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
Maximum 1-Hr. Concentration	0.1	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
Max. 8-Hr. Concentration	0.071	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
Days Above State Standard	1	0	2	0	0	0	1	1	2	0	7	0	1	2	0	1	1	1	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	2	0	0	0	1	0	0	0	2	0	0	2	0	0	0	0	0	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)						65	51	49	49	36	102	106	152	115	113	78	106	52	74	81
Max. 24-Hr. Concentration (Nat)						65	51	49	49	36	102	106	152	115	113	76	103	50	72	77
Annual Average (State)								23.8	24.3		21.7	31.1	36.3	32.8	36.9		32.3	27.1		28
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
Calc Days Above State 24-Hr Std								0	0		12	31	71	71	72		50	18		24
Calc Days Above Nat 24-Hr Std								0	0		0	0	0	0	0	0	0	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					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
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
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
Days Above State 8-Hr. Std.					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

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					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
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
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)	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002
Peak 1-Hr. Indicator					0.02	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
Max. Annual Average				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