San Joaquin Valley - Benzene Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 655 14% 2% Area-wide Sources 1269 26% 4% On-Road Mobile 1811 37% 6% Gasoline Vehicles 1759 36% 6% Diesel Vehicles 52 1% 0% Other Mobile 1115 23% 4% Natural Sources < 1 0% 0% Total 4851 100% 16% Total Statewide 30778