2002 Almanac (page 255) Table 5-28 2001 Emission Inventory by Compound South Coast Air Basin - Formaldehyde Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 349 6% 2% Area-wide Sources 482 8% 2% On-Road Mobile 2568 45% 12% Gasoline Vehicles 1954 34% 9% Diesel Vehicles 613 11% 3% Other Mobile 2334 41% 11% Natural Sources 0 0% 0% Total 5732 100% 26% Total Statewide 21771