California Air Resources Board 2009 Almanac (web)			
Chapter 5	Table 5-12		Statewide
Chromium (Hexavalent)			
County	Air Basin	tons/year	Percent
Los Angeles	South Coast	0	17%
San Diego	San Diego	0	10%
Fresno	San Joaquin Valley	0	7%
Orange	South Coast	0	5%
San Joaquin	San Joaquin Valley	0	5%
Kern	San Joaquin Valley	0	4%
Mono	Great Basin Valleys	0	4%
San Bernardino	Mojave Desert	0	3%
San Bernardino	South Coast	0	3%
Mendocino	North Coast	0	3%