California Air Resources Board 2009 Almanac (web) Chapter 5 San Francisco Bay Area Table 5-43 San Francisco Bay Area - Diesel PM Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 62 1% 0% Area-wide Sources 0 0% 0% On-Road Mobile 1222 29% 3% Gasoline Vehicles 0 0% 0% Diesel Vehicles 1222 29% 3% Other Mobile 2867 69% 8% Gasoline Fuel 0 0% 0% Diesel Fuel 2529 61% 7% Other Fuel 337 8% 1% Natural Sources 0 0% 0% Total 4151 100% 12% Total Statewide 35884