California Air Resources Board 2004 Almanac (web) Appendix A South Central Coast Air Basin Emission Trends and Forecasts Table A-27 "NOx Emissions (tons/day, annual average)" "ROG Emissions (tons/day, annual average)" County 1975 1980 1985 1990 1995 2000 2005 2010 1975 1980 1985 1990 1995 2000 2005 2010 San Luis Obispo 65 65 47 49 32 28 24 19 46 50 53 44 35 30 26 24 Santa Barbara 52 65 64 65 54 47 37 30 83 78 81 73 57 47 38 34 Ventura 94 105 93 85 67 57 47 36 109 118 107 95 75 62 51 45 "Directly Emitted PM10 Emissions (tons/day, annual average)" "CO Emissions (tons/day, annual average)" County 1975 1980 1985 1990 1995 2000 2005 2010 1975 1980 1985 1990 1995 2000 2005 2010 San Luis Obispo 24 26 27 28 27 28 29 29 273 290 303 277 204 167 139 116 Santa Barbara 19 21 21 22 20 22 22 23 468 451 457 418 299 229 180 143 Ventura 25 22 23 26 25 26 26 27 552 612 607 545 410 310 234 181 "Directly Emitted PM2.5 Emissions (tons/day, annual average)" County 1975 1980 1985 1990 1995 2000 2005 2010 San Luis Obispo 11 12 11 11 10 11 11 11 Santa Barbara 9 10 10 10 10 10 10 10 Ventura 15 12 11 12 11 11 11 11