California Air Resources Board 2006 Almanac (web) Chapter 5 South Coast Table 5-23 South Coast - Benzene Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 248 7% 2% Area-wide Sources 46 1% 0% On-Road Mobile 2116 59% 17% Gasoline Vehicles 2026 56% 16% Diesel Vehicles 90 3% 1% Other Mobile 1196 33% 10% Gasoline Fuel 1007 28% 8% Diesel Fuel 171 5% 1% Other Fuel 18 0% 0% Natural Sources 0 0% 0% Total 3606 100% 29% Total Statewide 12293