2002 Almanac (page 264) Table 5-42 2001 Emission Inventory by Compound San Francisco Bay Area Air Basin - Diesel Particualte Matter Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 50 1% <1% Area-wide Sources 0 0% 0% On-Road Mobile 1109 25% 5% Gasoline Vehicles 0 0% 0% Diesel Vehicles 1109 25% 5% Other Mobile 3340 75% 14% Natural Sources 0 0% 0% Total 4499 100% 18% Total Statewide 24509