California Air Resources Board 2006 Almanac (web)			
Chapter 5	Table 5-19		Statewide
Perchloroethylene			
County	Air Basin	tons/year	Percent
Los Angeles	South Coast	1224	23%
San Diego	San Diego	657	12%
Orange	South Coast	420	8%
Sacramento	Sacramento Valley	261	5%
San Bernardino	South Coast	185	3%
Fresno	San Joaquin Valley	183	3%
Riverside	South Coast	182	3%
Santa Clara	San Francisco Bay Area	178	3%
Alameda	San Francisco Bay Area	167	3%
San Joaquin	San Joaquin Valley	119	2%