California Air Resources Board 2007 Almanac (web) Chapter 5 San Joaquin Valley Table 5-45 San Joaquin Valley - Acetaldehyde Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 56 3% 1% Area-wide Sources 177 10% 2% On-Road Mobile 731 42% 7% Gasoline Vehicles 100 6% 1% Diesel Vehicles 631 36% 6% Other Mobile 797 45% 8% Gasoline Fuel 81 5% 1% Diesel Fuel 587 33% 6% Other Fuel 129 7% 1% Natural Sources 0 0% 0% Total 1761 100% 18% Total Statewide 10023