2003 Almanac (page 272) Table 5-55 2002 Emission Inventory by Compound San Diego Air Basin - Acetaldehyde Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 4 1% 0% Area-wide Sources 103 20% 1% On-Road Mobile 148 28% 2% Gasoline Vehicles 73 14% 1% Diesel Vehicles 75 14% 1% Other Mobile 271 51% 4% Natural Sources 0 0% 0% Total 526 100% 7% Total Statewide 7543