2002 Almanac (page 260) Table 5-34 2001 Emission Inventory by Compound San Francisco Bay Area Air Basin - Benzene Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 207 6% 1% Area-wide Sources 87 2% 0% On-Road Mobile 2560 73% 12% Gasoline Vehicles 2516 72% 12% Diesel Vehicles 44 1% 0% Other Mobile 656 19% 3% Natural Sources 0 0% 0% Total 3512 100% 16% Total Statewide 22022