2008 PM10 Air Quality Table Table 2-14 Page 2-25 AIR BASIN 2006 Maximum 24-Hour Concentration in micrograms/cubic meter 2006 Maximum Annual Average of Quarters in micrograms/cubic meter State National State National Great Basin Valleys Air Basin 7709.0 8299.0 63.1 93.2 Lake County Air Basin 32.8 11.7 Lake Tahoe Air Basin 66.6 17.1 Mojave Desert Air Basin 77.0 184.4 30.5 33.0 Mountain Counties Air Basin 97.0 167.1 17.6 29.0 North Central Coast Air Basin 65.0 63.0 25.0 23.9 North Coast Air Basin 153.9 160.6 21.9 25.8 Northeast Plateau Air Basin 43.7 49.6 13.4 14.1 Sacramento Valley Air Basin 111.0 159.6 28.8 37.8 Salton Sea Air Basin 261.0 248.0 71.6 70.9 San Diego Air Basin 134.0 133.0 54.1 53.7 San Francisco Bay Area Air Basin 106.3 103.9 35.0 34.1 San Joaquin Valley Air Basin 255.0 304.0 56.5 55.4 South Central Coast Air Basin 135.0 131.0 27.9 29.7 South Coast Air Basin 135.0 142.0 62.3 64.0