California Air Resources Board 2008 Almanac (web)			
Chapter 5	Table 5-20		Statewide
Perchloroethylene			
County	Air Basin	tons/year	Percent
Los Angeles	South Coast	1263	26%
San Diego	San Diego	422	9%
Orange	South Coast	419	9%
Sacramento	Sacramento Valley	251	5%
San Bernardino	South Coast	212	4%
Riverside	South Coast	199	4%
Santa Clara	San Francisco Bay Area	172	4%
Alameda	San Francisco Bay Area	169	3%
Fresno	San Joaquin Valley	159	3%
San Joaquin	San Joaquin Valley	111	2%