2002 Almanac (page 362)  Table A-49  Mountain Counties - Tuolumne County - Air Quality Trends																				

OZONE (ppm)	1981	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
Peak 1-Hour Indicator								0.097	0.093	0.092	0.089	0.102	0.102	0.103	0.105	0.112	0.112	0.118	0.115	0.113
National 1-Hr. Design Value								0.091	0.091	0.091	0.09	0.09	0.1	0.101	0.103	0.116	0.117	0.117	0.116	0.114
Nat. 8-Hr. Design Value								0.081	0.078	0.077	0.075	0.083	0.085	0.085	0.087	0.09	0.088	0.092	0.092	0.096
Maximum 1-Hr. Concentration								0.096	0.09	0.09	0.09	0.1	0.12	0.107	0.135	0.121	0.117	0.122	0.13	0.109
Max. 8-Hr. Concentration								0.086	0.078	0.081	0.078	0.097	0.088	0.094	0.105	0.108	0.107	0.107	0.103	0.104
Days Above State Standard								2	0	0	0	2	5	8	9	25	8	21	17	13
Days Above Nat. 1-Hr. Std.								0	0	0	0	0	0	0	1	0	0	0	1	0
Days Above Nat. 8-Hr. Std.								3	0	0	0	1	6	9	14	21	7	26	25	26

PM10 (ug/m3)	1981	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
Max. 24-Hour Concentration																				
Max. Annual Geometric Mean																				
Calc Days Above State 24-Hr Std																				
Calc Days Above Nat 24-Hr Std																				

CARBON MONOXIDE (ppm)	1981	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
Peak 8-Hr. Indicator	15.7											2.9	2.9	2.8	2.8	2.7	2.4	5.1	5.4	5.7
Max. 1-Hr. Concentration	30											4	5	4.4	3.9	4.5	6.6	6.7	4.1	3.4
Max. 8-Hr. Concentration	16											2.6	3	2.7	3.4	2.6	1.9	5.5	3	1.6
Days Above State 8-Hr. Std.	40											0	0	0	0	0	0	0	0	0
Days Above Nat. 8-Hr. Std.	41											0	0	0	0	0	0	0	0	0

NITROGEN DIOXIDE (ppm)	1981	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
Peak 1-Hr. Indicator																				
Max. 1-Hr. Concentration																				
Max. Annual Average																				

SULFUR DIOXIDE (ppm)	1981	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000
Peak 1-Hr. Indicator																				
Max. 24-Hr. Concentration
Max. Annual Average