Appendix C	Los Angeles County: Burbank - West Palm Avenue Air Quality and Health Risk													Table C-17	

Annual Average Concentrations and Health Risks															
TAC	Conc.*/Risk**	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003
Acetaldehyde	Annual Avg	3.16	3.89		3.06	2.46	0.79			1.94	2.70	1.70	1.93	1.96	
	Health Risk	15	19		15	12	4			9	13	8	9	10	
Benzene	Annual Avg	4.79	3.91	3.44	2.63	3.33	2.45	1.91	1.48	1.66	1.64	1.27	1.06	1.01	
	Health Risk	444	362	319	244	308	227	177	137	154	151	117	98	93	
"1,3-Butadiene"	Annual Avg	0.78	0.62	0.73	0.75	0.75	0.61	0.51	0.42	0.48	0.48	0.35	0.33	0.28	
	Health Risk	294	234	272	282	283	227	192	158	182	181	130	123	106	
Carbon Tetrachloride	Annual Avg	0.14	0.13				0.10	0.08		0.11		0.09	0.09	0.09	
	Health Risk	37	35				28	22		30		25	23	24	
"Chromium, Hexavalent"	Annual Avg			0.65	0.37	0.43	1.24			0.23	0.20	0.19		0.12	
	Health Risk			97	55	64	186			34	29	28		18	
para-Dichlorobenzene	Annual Avg		0.23	0.22	0.19	0.14	0.20	0.10	0.11			0.13	0.15	0.17	
	Health Risk		15	15	12	9	13	7	7			8	10	11	
Formaldehyde	Annual Avg	4.05	3.59		3.66	3.92	4.58			4.72	6.07	4.14	4.87	5.48	
	Health Risk	30	26		27	29	34			35	45	30	36	40	
Methylene Chloride	Annual Avg	3.25	1.69	1.42	2.01	1.94	1.82	1.41	1.11	1.07		0.80	0.60	0.60	
	Health Risk	11	6	5	7	7	6	5	4	4		3	2	2	
Perchloroethylene	Annual Avg	1.19	0.79	0.61	0.62	0.66	0.49	0.44	0.37	0.50		0.37	0.30	0.25	
	Health Risk	48	31	24	25	26	19	18	15	20		15	12	10	
Diesel PM	Annual Avg	No Monitoring Data Available													
	Health Risk														
Total Health Risk		879	728	732	667	738	744	421	321	468	419	364	313	314