California Air Resources Board 2006 Almanac (web) Chapter 4 South Coast Air Basin Table 4-10 "CO Emission Trends (tons/day, annual average)" Emission Source 1975 1980 1985 1990 1995 2000 2005 2010 2015 2020 All Sources 16137 13368 13099 10309 7547 5451 3838 2943 2395 2056 Stationary Sources 291 280 69 95 62 48 65 66 68 69 Area-wide Sources 39 44 48 56 57 60 64 68 73 78 On-Road Mobile 14571 11754 11622 8690 6153 4207 2705 1883 1334 956 Gasoline Vehicles 14546 11708 11545 8623 6093 4154 2654 1839 1295 920 Diesel Vehicles 25 47 78 67 60 52 51 44 39 36 Other Mobile 1236 1290 1360 1468 1274 1136 1004 926 921 953 Gasoline Fuel 1027 1076 1156 1251 1080 952 823 743 735 761 Diesel Fuel 119 121 119 122 96 85 76 72 69 68 Other Fuel 91 92 86 96 98 98 105 111 117 124