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APPENDIX C <br /> HUMAN HEALTH SCREENING EVALUATION <br /> • BURNS PROPERTY <br /> 1887 PROPERTY,TRACY,CALIFORNIA <br /> ' PROJECT#5650 <br /> ' INHALATION OF VOCS AND NON-VOCS IN AIR FROM SOIL-Cancer <br /> ' Concentration InhalationExcessChemical Air (Ca) Slope Factor Cancer Risk <br /> (SFi) <br /> (mg/m') (mg/kg-d)-' (—) <br /> Acenaphthene 4.1 E-05 NA NA <br /> Benzo(a)anthracene 6.5E-09 0.39 3.8E-10 <br /> ' <br /> Chrysene 5.0E-08 0.039 2.9E-10 <br /> Fluoranthene 8.5E-09 NA NA <br /> Fluorene 2.8E-05 NA NA <br /> ' <br /> Naphthalene 3.8E-04 NA NA <br /> Phenanthrene 2.9E-07 NA NA <br /> Pyrene 9.0E-09 NA NA <br /> ' 7E-]0 <br /> IR,d.lt x EF x EDeduit <br /> lie <br /> Risk,, = SF, x C. x BWaa.h x AT x 365days/yr <br /> + SF, x Ce x IR,,,hild x EF x ED,h ld <br /> ' BW,h;ld x AT x 365 day/yr <br /> Parameter Symbol Values Units <br /> I ' <br /> Exposure Frequency EFa 350 days <br /> Exposure Duration-adult EDar 24 yrs <br /> Exposure Duration-child EDcr 6 yrs <br /> ' <br /> Body Weight-adult BWar 70 k <br /> Body Weight-child BWcr 15 k <br /> Averaging Time-Cancer ATca 70 yrs <br /> Inhalation Rate-adult IRaar 20 m3/d <br /> Inhalation Rate-child IRacr 10 m3/d <br /> 1 <br /> 1 <br /> ' bums\risk air Page 15 of 18 <br />