Appendix A	North Coast Air Basin - County: Sonoma					Table A-56														

OZONE (ppm)	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
Peak 1-Hour Indicator											0.085	0.088	0.089	0.09	0.088	0.091	0.103	0.109	0.105	0.093
4th High 1-Hr in 3 Yrs											0.08	0.09	0.09	0.09	0.09	0.09	0.11	0.11	0.11	0.1
Avg of 4th Hi 8-Hr in 3 Yrs											0.063	0.065	0.066	0.069	0.069	0.072	0.077	0.082	0.076	0.069
Maximum 1-Hr. Concentration											0.09	0.09	0.1	0.1	0.08	0.1	0.13	0.1	0.09	0.09
Max. 8-Hr. Concentration											0.072	0.073	0.08	0.09	0.071	0.091	0.106	0.087	0.077	0.073
Days Above State Standard											0	0	1	1	0	2	7	4	0	0
Days Above Nat. 1-Hr. Std.											0	0	0	0	0	0	1	0	0	0
Days Above Nat. 8-Hr. Std.											0	0	0	1	0	1	5	2	0	0

PM10 (ug/m3)	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
Max. 24-Hour Concentration							86	85	266	78	58	53	57	43	40	54	32	71	44	59
Max. Avg. of Quarters							24.8	26.8	23.6			20.2	18.6		16.6	16	15.9	18.1	14.5	
Calc Days Above State 24-Hr Std							24	29	16	35	6	12	12	0	0	3	0	12	0	6
Calc Days Above Nat 24-Hr Std							0	0	6	0		0	0		0	0	0	0	0	0

CARBON MONOXIDE (ppm)	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
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)	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
Peak 1-Hr. Indicator																				
Max. 1-Hr. Concentration																				
Max. Annual Average																				

SULFUR DIOXIDE (ppm)	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
Peak 1-Hr. Indicator																				
Max. 24-Hr. Concentration																				
Max. Annual Average																				

A portion of Sonoma County lies within the San Francisco Bay Area Air Basin