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1 <br /> ATTACHMENT 3 <br /> HUMAN HEALTH SCREENING EVALUATION <br /> BURNSPROPERTY <br /> 1887 PROPERTY,TRACY,CALIFORNIA <br /> PROJECT#7243.002 <br /> INHALATION OF VOCS AND NON-VOCS IN AIR FROM SOIL-Cancer <br /> Concentration Inhalation Excess <br /> Chemical Slope Factor <br /> Air (Ca) (SFi) Cancer Risk <br /> (mg/m) (mg/kg-d)-' (--) <br /> Acenaphthene 4.1E-05 NA NA <br /> Benzo(a)anthracene 9.0E-09 0.39 5.2E-10 <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 /> Naphthalene 3.8E-04 NA NA <br /> Phenanthrene 2.9E-07 NA NA <br /> Pyrene 3.9E-08 NA NA <br /> Toluene NA NA NA <br /> Xylene NA NA NA <br /> 8E-10 <br /> Risk, = SF, x Ca x IRaault x EF x EDaawt <br /> BWadult x AT x 365 days/yr <br /> + SFl x Ca x IR,,,hild x EF x EDchild <br /> BW,ild x AT x 365 day/yr <br /> Parameter Symbol Values Units <br /> Exposure Frequency EFa 350 days <br /> Exposure Duration-adult EDar 24 yrs <br /> Exposure Duration-child EDcr 6 yrs <br /> Body Weight-adult BWar 70 kg <br /> Body Weight-child BWcr 15 kg <br /> Averaging Time-Cancer ATca 70 yrs <br /> Inhalation Rate-adult IRaar 20 m3/d <br /> Inhalation Rate-child IRacr 10 m3/d <br /> ND=Not detected <br /> NA=Not Available <br /> w <br /> is\project\7000s\7243\burns_pea update_copy.xls Page 15 of 18 <br />