California Air Resources Board 2008 Almanac (web)			
Chapter 5	Table 5-4		Statewide
Acetaldehyde			
County	Air Basin	tons/year	Percent
Los Angeles	South Coast	1343	13%
San Diego	San Diego	589	6%
Orange	South Coast	420	4%
Kern	San Joaquin Valley	393	4%
San Bernardino	Mojave Desert	387	4%
Alameda	San Francisco Bay Area	381	4%
Fresno	San Joaquin Valley	351	3%
Santa Clara	San Francisco Bay Area	298	3%
San Bernardino	South Coast	290	3%
San Joaquin	San Joaquin Valley	286	3%