"ROG Emission Trends (tons/day, annual average)" Emission Source 1975 1980 1985 1990 1995 2000 2005 2010 All Sources 434 429 402 340 291 239 201 188 Stationary Sources 33 51 48 49 48 47 54 63 Area-wide Sources 34 41 43 45 42 43 43 46 On-Road Mobile 346 313 281 211 164 117 76 54 Gasoline Vehicles 345 312 278 207 161 114 74 53 Diesel Vehicles 1 2 3 4 4 3 2 2 Other Mobile 20 24 30 36 36 33 28 25