California Air Resources Board 2009 Almanac (web) Chapter 5 San Diego Table 5-63 San Diego - Methylene Chloride Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 57 16% 1% Area-wide Sources 301 84% 5% 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 359 100% 6% Total Statewide 6436