California Air Resources Board 2008 Almanac (web) Chapter 5 South Coast Table 5-24 South Coast - Benzene Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 142 4% 1% Area-wide Sources 45 1% 0% On-Road Mobile 2109 59% 17% Gasoline Vehicles 1962 55% 16% Diesel Vehicles 148 4% 1% Other Mobile 1282 36% 11% Gasoline Fuel 987 28% 8% Diesel Fuel 286 8% 2% Other Fuel 10 0% 0% Natural Sources 0 0% 0% Total 3578 100% 30% Total Statewide 12060