California Air Resources Board 2006 Almanac (web)																									
Appendix C	South Coast		Table C_16																						
TAC	Los Angeles	Orange	Riverside	San Bernardino																					
Acetaldehyde	992	325	213	214																					
Benzene	2141	726	356	383																					
"1,3-Butadiene"	410	139	69	78																					
Carbon Tetrachloride	0.11	0.02	0.09	0.01																					
Chromium (Hexavalent)	0.08	0.04	0.02	0.03																					
para-DiChlorobenzene	623	197	90	94																					
Formaldehyde	2664	908	529	522																					
Methylene Chloride	2137	933	196	239																					
Perchloroethylene	1224	420	182	185																					
Diesel PM	4654	1376	966	750