California Air Resources Board 2009 Almanac (web) Chapter 5 South Coast Table 5-24 South Coast - Benzene Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 134 4% 1% Area-wide Sources 45 2% 0% On-Road Mobile 1662 55% 15% Gasoline Vehicles 1539 51% 14% Diesel Vehicles 124 4% 1% Other Mobile 1164 39% 11% Gasoline Fuel 902 30% 8% Diesel Fuel 260 9% 2% Other Fuel 2 0% 0% Natural Sources 0 0% 0% Total 3006 100% 28% Total Statewide 10794