2002 Almanac (page 354) Table A-41 Mountain Counties - Amador 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 0.119 0.117 0.117 0.12 0.123 0.123 0.133 0.129 0.127 National 1-Hr. Design Value 0.11 0.11 0.119 0.119 0.123 0.127 0.128 0.128 0.126 Nat. 8-Hr. Design Value 0.09 0.089 0.091 0.091 0.093 0.09 0.095 0.096 0.099 Maximum 1-Hr. Concentration 0.12 0.11 0.123 0.146 0.127 0.135 0.143 0.121 0.121 Max. 8-Hr. Concentration 0.105 0.09 0.104 0.112 0.106 0.104 0.115 0.107 0.102 Days Above State Standard 15 11 15 21 21 9 30 22 13 Days Above Nat. 1-Hr. Std. 0 0 0 1 2 1 4 0 0 Days Above Nat. 8-Hr. Std. 11 5 15 18 14 3 28 13 14 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 30 Max. Annual Geometric Mean Calc Days Above State 24-Hr Std 0 Calc Days Above Nat 24-Hr Std 0 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 2.5 2.2 2 2 1.7 1.5 1.4 1.5 1.6 Max. 1-Hr. Concentration 3 3 9.3 9.3 2.2 2.8 2.5 2.2 5 Max. 8-Hr. Concentration 2.4 3 1.8 2.6 1.5 1.4 1.4 1.5 1.3 Days Above State 8-Hr. Std. 0 0 0 0 0 0 0 0 0 Days Above Nat. 8-Hr. Std. 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