California Air Resources Board 2009 Almanac (web) Chapter 5 Sacramento Valley Table 5-67 Sacramento Valley - Acetaldehyde Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 27 3% 0% Area-wide Sources 304 31% 3% On-Road Mobile 249 25% 3% Gasoline Vehicles 63 6% 1% Diesel Vehicles 185 19% 2% Other Mobile 407 41% 4% Gasoline Fuel 74 7% 1% Diesel Fuel 289 29% 3% Other Fuel 44 4% 0% Natural Sources 0 0% 0% Total 986 100% 11% Total Statewide 9103