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ATTACHMENT 3 <br /> HUMAN HEALTH SCREENING EVALUATION <br /> • BURNSPROPERTY <br /> 1887 PROPERTY,TRACY,CALIFORNIA <br /> PROJECT 47243.002 <br /> DERMAL CONTACT AND INCIDENTAL INGESTION OF SOIL-Cancer <br /> Concentration Absorption Oral Slope Excess Cancer <br /> Chemical Soil(Cs) Fractions Soil Factor(SFo) Risk <br /> (ABSds) <br /> (mg/kg) (--) (mg/kg-d)-t ('-) <br /> Acenaphthene 0.94 0.15 NA NA <br /> Benzo(a)anthracene 0.18 0.15 1.2 9.5E-07 <br /> Chrysene 1 0.15 0.12 5.3E-07 <br /> Fluoranthene 0.17 0.15 NA NA <br /> Fluorene 3.7 0.15 NA NA <br /> Naphthalene 6.8 0.15 NA NA <br /> Phenanthrene 5.7 0.15 NA NA <br /> Pyrene 0.78 0.15 NA NA <br /> Toluene ND 0.1 NA ND <br /> ,Xylene ND 0.1 NA ND <br /> 1E-06 <br /> IRs,aduh x EF x EDadan x 10-6 kg/mg <br /> Risk, = SFo x CS x• BW aduk x AT x 365 days/yr <br /> IRs,.hdd x EF x ED.wid x 10"6 kg/mg <br /> + SF. x CS x BW�naa x AT x 365 days/yr <br /> SAad�n x AF x ABS x EFaduit x EDaduit x 10-6 kg/mg <br /> + SF, x CS x BWadut x AT x 365 days/yr <br /> SA�hdd x AF x ABS x EF.hud x ED�ndd x 10-6 kg/mg <br /> + SF. x Cs x BW,hdd x AT x 365 days/yr <br /> Parameter Symbol Values Units <br /> Exposure Frequency-ingestion EFig 350 d/yr <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 /> Ingestion Rate-adult IRsar 100 mg/d <br /> Ingestion Rate-child IRscr 200 mg/d <br /> Exposure Frequency-dermal <br /> contact/adult EFdc 100 d/yr <br /> Exposure Frequency-Dermal <br /> contact/child EFdc 350 d/yr <br /> Surface Area-adult SAsar 5800 cm2 <br /> Surface Area-child SAscr 2000 cm2 <br /> • Soil-to-Skin Adherence Factor AF I I mg/cm2 <br /> Conversion Factor from mg to kg CFm _k 1E-06 kg/mg <br /> ND=Not detected <br /> NA=Not Available <br /> is\project\7000s\7243\burns_pea update_copy.xls Page 13 of 18 <br />