Appendix C	Air Quality and Health Risk		Table C-44										

SACRAMENTO - Citrus Heights - Sunrise Blvd - Annual Average Concentrations and Health Risks													
TAC	Conc.*/ Risk**	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001
Acetaldehyde	Annual Avg	1.32											
	Health Risk	6											
Benzene	Annual Avg	2.08	1.85	1.41									
	Health Risk	192	171	130									
"1,3-Butadiene"	Annual Avg	0.353	0.302	0.307									
	Health Risk	133	114	115									
Carbon Tetrachloride	Annual Avg	0.124	0.123										
	Health Risk	33	32										
Chromium (Hexavalent)	Annual Avg												
	Health Risk												
para-Dichlorobenzene	Annual Avg			0.11									
	Health Risk			7									
Formaldehyde	Annual Avg	1.66											
	Health Risk	12											
Methylene Chloride	Annual Avg	0.76	0.54	0.5									
	Health Risk	3	2	2									
Perchloroethylene	Annual Avg	0.095	0.094	0.076									
	Health Risk	4	4	3									
Diesel PM	Annual Avg	No Monitoring Data Available											
	Health Risk												
Total Health Risk		383	323	257	0	0	0	0	0	0	0	0	0

*    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.