2002 Almanac (page 130) Table 4-1 Ozone Precursor Emission Trends and Forecasts - NOx South Coast Air Basin "NOx Emission Trends (tons/day, annual average)" Emission Source 1975 1980 1985 1990 1995 2000 2005 2010 All Sources 1751 1708 1801 1638 1339 1101 864 680 Stationary Sources 383 361 323 182 136 98 73 74 Area-wide Sources 33 36 37 30 29 32 35 29 On-Road Mobile 991 945 1087 1063 875 679 490 351 Gasoline Vehicles 911 791 819 711 610 440 278 192 Diesel Vehicles 80 153 268 352 265 239 212 159 Other Mobile 344 366 354 364 299 292 267 226