2002 Almanac (page 422) Table B-8 Ozone: Days Above National 8-Hour Standard AIR BASIN 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 GREAT BASIN VALLEYS 0 0 1 2 2 13 2 6 0 3 0 9 0 6 2 1 0 1 1 0 LAKE COUNTY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 LAKE TAHOE 0 0 0 0 1 0 0 1 2 0 0 0 0 0 1 0 0 0 0 0 MOJAVE DESERT 148 104 105 109 129 146 144 142 137 120 122 134 124 129 109 91 78 68 73 72 MOUNTAIN COUNTIES 1 0 22 43 38 22 33 47 34 49 47 59 28 54 65 56 NORTH CENTRAL COAST 4 0 3 0 5 0 26 6 3 5 3 4 4 1 3 9 1 6 1 0 NORTH COAST 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 5 2 0 NORTHEAST PLATEAU 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SACRAMENTO VALLEY 63 46 44 46 42 50 73 68 37 44 60 56 22 48 40 44 15 60 43 35 SALTON SEA 110 80 77 79 70 62 72 70 90 56 65 75 80 75 79 62 63 40 35 33 SAN DIEGO 133 83 101 98 109 81 99 119 122 96 67 66 58 46 48 31 16 35 16 16 SAN FRANCISCO BAY AREA 23 13 26 32 17 13 29 20 13 7 6 6 5 4 18 14 0 16 9 4 SAN JOAQUIN VALLEY 96 108 100 120 127 134 148 140 133 104 121 119 104 108 109 114 95 84 117 103 SOUTH CENTRAL COAST 135 124 109 109 111 122 91 113 97 76 94 63 53 65 70 68 46 41 24 30 SOUTH COAST 199 166 169 190 181 191 179 194 181 161 160 173 161 148 120 115 118 93 93 94