San Francisco Bay Area - Perchloroethylene Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 1074 73% 9% Area-wide Sources 404 27% 4% On-Road Mobile 0 0% 0% Gasoline Vehicles 0 0% 0% Diesel Vehicles 0 0% 0% Other Mobile 0 0% 0% Natural Sources 0 0% 0% Total 1478 100% 13% Total Statewide 11431