2003 Almanac (page 256) Table 5-33 2002 Emission Inventory by Compound San Francisco Bay Area Air Basin - Acetaldehyde Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 28 2% 0% Area-wide Sources 279 20% 4% On-Road Mobile 356 26% 5% Gasoline Vehicles 172 12% 2% Diesel Vehicles 183 13% 2% Other Mobile 727 52% 10% Natural Sources 0 0% 0% Total 1390 100% 18% Total Statewide 7543