2003 Almanac (page 272) Table 5-56 2002 Emission Inventory by Compound San Diego Air Basin - Benzene Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 30 3% 0% Area-wide Sources 3 0% 0% On-Road Mobile 611 65% 4% Gasoline Vehicles 591 62% 4% Diesel Vehicles 20 2% 0% Other Mobile 302 32% 2% Natural Sources 0 0% 0% Total 947 100% 7% Total Statewide 13912