Chapter 5	Statewide		Table 5-7
"1,3-Butadiene"			
County	Air Basin	tons/year	Percent
Los Angeles	South Coast	477	16%
San Diego	San Diego	215	7%
Orange	South Coast	159	5%
Tulare	San Joaquin Valley	107	4%
Santa Clara	San Francisco Bay Area	102	3%
San Bernardino	South Coast	93	3%
Alameda	San Francisco Bay Area	88	3%
Riverside	South Coast	86	3%
Fresno	San Joaquin Valley	80	3%
Sacramento	Sacramento Valley	72	2%