2002 Almanac (page 216)  Table 5-5  2001 Top Ten Counties:  Benzene			

Benzene			
County	Air Basin	tons/year	Percent
Los Angeles	South Coast	3928	18%
San Diego	San Diego	1471	7%
Orange	South Coast	1307	6%
Kern	San Joaquin Valley	1158	5%
Fresno	San Joaquin Valley	971	4%
Santa Clara	San Francisco Bay Area	859	4%
Alameda	San Francisco Bay Area	677	3%
Sacramento	Sacramento Valley	669	3%
San Bernardino	South Coast	646	3%
Riverside	South Coast	562	3%