California Air Resources Board 2006 Almanac (web)			
Chapter 5	Table 5-5		Statewide
Benzene			
County	Air Basin	tons/year	Percent
Los Angeles	South Coast	2141	17%
San Diego	San Diego	849	7%
Kern	San Joaquin Valley	742	6%
Orange	South Coast	726	6%
Santa Clara	San Francisco Bay Area	467	4%
Alameda	San Francisco Bay Area	400	3%
San Bernardino	South Coast	383	3%
Riverside	South Coast	356	3%
Sacramento	Sacramento Valley	343	3%
Santa Barbara	South Central Coast	341	3%