Appendix C	Air Quality and Health Risk		Table C-17										

LOS ANGELES - Burbank - West Palm Avenue - Annual Average Concentrations and Health Risks													
TAC	Conc.*/ Risk**	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
Acetaldehyde	Annual Avg	3.16	3.89		3.06	2.46	0.79			1.94	2.7	1.7	1.93
	Health Risk	15	19		15	12	4			9	13	8	9
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
	Health Risk	444	362	319	244	308	227	177	137	154	151	117	98
"1,3-Butadiene"	Annual Avg	0.782	0.623	0.725	0.749	0.752	0.605	0.512	0.421	0.483	0.483	0.345	0.328
	Health Risk	294	234	272	282	283	227	192	158	182	181	130	123
Carbon Tetrachloride	Annual Avg	0.141	0.133				0.104	0.082		0.114		0.094	0.086
	Health Risk	37	35				28	22		30		25	23
Chromium (Hexavalent)	Annual Avg			0.65	0.37	0.43	1.24			0.23	0.2	0.19	
	Health Risk			97	55	64	186			34	29	28	
para-Dichlorobenzene	Annual Avg		0.23	0.22	0.19	0.14	0.2	0.1	0.11			0.13	0.15
	Health Risk		15	15	12	9	13	7	7			8	10
Formaldehyde	Annual Avg	4.05	3.59		3.66	3.92	4.58			4.72	6.07	4.14	4.87
	Health Risk	30	26		27	29	34			35	45	30	36
Methylene Chloride	Annual Avg	3.25	1.69	1.42	2.01	1.94	1.82	1.41	1.11	1.07		0.8	0.6
	Health Risk	11	6	5	7	7	6	5	4	4		3	2
Perchloroethylene	Annual Avg	1.19	0.785	0.609	0.62	0.663	0.487	0.44	0.365	0.503		0.368	0.296
	Health Risk	48	31	24	25	26	19	18	15	20		15	12
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

*    Concentrations for Chromium (Hexavalent) are expressed as ng/m3 and concentrations for Diesel PM are expressed as ug/m3.  Concentrations for all other TACs are expressed as parts per billion.													
**  Health Risk represents the number of excess cancer cases per million people based on a lifetime (70-year) exposure to the annual average concentration.  Total Health Risk represents only those compounds													
listed in this table and only those with data for that year.  There may be other significant compounds for which monitoring and/or health risk information are not available.