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ATTACHMENT 3 <br /> HUMAN HEALTH SCREENING EVALUATION <br /> BURNSPROPERTY <br /> 1887 PROPERTY,TRACY,CALIFORNIA <br /> PROJECT#7243.002 <br /> DERMAL CONTACT AND INCIDENTAL INGESTION OF SOIL-Non-cancer <br /> Concentration Absorption Oral Chronic Hazard <br /> Chemical Reference <br /> Soil(Cs) Fractions Soil Quotient <br /> (ABSds) Dose(RfDo) <br /> (mg/kg) (--) (m /k -d) (-- <br /> Acenaphthene 0.94 0.15 0.06 5.0E-04 <br /> Benzo(a)anthracene 0.18 0.15 NA NA <br /> Chrysene 1 0.15 NA NA <br /> Fluoranthene 0.17 0.15 0.04 1.4E-04 <br /> Fluorene 3.7 0.15 0.04 3.0E-03 <br /> Naphthalene 6.8 0.15 0.02 1.1 E-02 <br /> Phenanthrene 5.7 0.15 0.3 6.1E-04 <br /> Pyrene 0.78 0.15 0.03 8.3E-04 <br /> Toluene ND 0.1 0.2 ND <br /> Xylene ND 1 0.1 1 2 1 <br /> ND <br /> 2E-02 <br /> MHazards.;, _ (1/RfDo) x CS x IR 5x EF x ED x 10-6 kg/mg <br /> BW x AT x 365 day/yr <br /> + (1/RfD.) x Cs x SA x AF x ABS x EF x ED x 10"6 kg/mg <br /> BW x AT x 365 days/yr <br /> Parameter Symbol Values Units <br /> Exposure Frequency-ingestion EFig 350 d/yr <br /> Exposure Duration ED 6 yrs <br /> Body Weight BW 15 kg <br /> Averaging Time-Non-cancer ATnc 6 yrs <br /> Ingestion Rate IRs 200 mg/d <br /> Surface Area SAs 2000 cm2 <br /> Soil-to-Skin Adherence Factor AF 1 mg/cm2 <br /> Exposure Frequency-dermal contact EFdc 350 d/yr <br /> Conversion Factor from mg to kg CF. _k 1E-06 I kg/mg <br /> ND=Not detected <br /> NA=Not Available <br /> is\project\7000s\7243\burns_pea update_copy.xls Page 14 of 18 <br />