2002 Almanac (page 345)  Table A-32  Great Basin Valleys - Inyo 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	0.088											0.083	0.083	0.097	0.097	0.094	0.09	0.092	0.09	0.09
National 1-Hr. Design Value	0.08										0.04	0.08	0.08	0.093	0.093	0.093	0.086	0.088	0.089	0.09
Nat. 8-Hr. Design Value	0.067										0.04	0.055	0.06	0.068	0.064	0.076	0.074	0.079	0.079	0.08
Maximum 1-Hr. Concentration	0.08										0.05	0.08	0.08	0.101	0.085	0.095	0.084	0.092	0.094	0.09
Max. 8-Hr. Concentration	0.073										0.041	0.076	0.077	0.089	0.073	0.082	0.08	0.085	0.089	0.08
Days Above State Standard	0										0	0	0	2	0	1	0	0	0	0
Days Above Nat. 1-Hr. Std.	0										0	0	0	0	0	0	0	0	0	0
Days Above Nat. 8-Hr. Std.	0										0	0	0	3	0	0	0	1	1	0

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								394	1861	866	181	526	781	388	692	397	402	1116	514	715
Max. Annual Geometric Mean								23.3	24.1	15.2	17.9	16.4	16.8	22.2	11.5	20.1	12.4	19.6	13.9	17.4
Calc Days Above State 24-Hr Std								78	72	30	33	36	36	42	24	21	32	78	19	48
Calc Days Above Nat 24-Hr Std								12	24	12	6	18	6	6	12	6	14	16	8	12

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												3.5	3.2	3.1	2.9					
Max. 1-Hr. Concentration											6	11	5	5	4					
Max. 8-Hr. Concentration											3.6	3.8	2.8	2.8	2					
Days Above State 8-Hr. Std.											0	0	0	0	0					
Days Above Nat. 8-Hr. Std.											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