California Air Resources Board 2008 Almanac (web) Chapter 5 San Francisco Bay Area Table 5-41 San Francisco Bay Area - Methylene Chloride Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 271 28% 4% Area-wide Sources 692 72% 11% On-Road Mobile 0 0% 0% Gasoline Vehicles 0 0% 0% Diesel Vehicles 0 0% 0% Other Mobile 0 0% 0% Gasoline Fuel 0 0% 0% Diesel Fuel 0 0% 0% Other Fuel 0 0% 0% Natural Sources 0 0% 0% Total 963 100% 15% Total Statewide 6527