2003 Almanac (page 264) Table 5-45 2002 Emission Inventory by Compound San Joaquin Valley Air Basin - Benzene Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 663 33% 5% Area-wide Sources 13 1% 0% On-Road Mobile 843 42% 6% Gasoline Vehicles 797 39% 6% Diesel Vehicles 46 2% 0% Other Mobile 508 25% 4% Natural Sources < 1 0% 0% Total 2027 100% 15% Total Statewide 13912