San Diego - Acetaldehyde Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 23 3% 0% Area-wide Sources 103 15% 1% On-Road Mobile 200 30% 2% Gasoline Vehicles 116 17% 1% Diesel Vehicles 84 12% 1% Other Mobile 348 52% 4% Natural Sources 0 0% 0% Total 675 100% 7% Total Statewide 9568