2002 Almanac (page 447)  Table C-15  County Emissions (tons/year) for Ten Toxic Air Contaminants by Air Basin				
South Coast Air Basin				

TAC	Los Angeles*	Orange	Riverside*	San Bernardino*
Acetaldehyde	1166	422	221	253
Benzene	3928	1307	562	646
"1,3-Butadiene"	630	192	100	114
Carbon Tetrachloride	1.83	0.08	0.02	< .01
Chromium (Hexavalent)	0.49	0.05	0.12	0.02
para-Dichlorobenzene	483	155	64	69
Formaldehyde	3394	1125	574	639
Methylene Chloride	2562	1009	248	462
Perchloroethylene	3088	1537	274	399
Diesel PM	4338	1731	817	726

*  This Air Basin includes only a portion of this county.