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APPENDIX C <br /> HUMAN HEALTH SCREENING EVALUATION <br /> POMBO PROPERTY <br /> 1755 WEST 11TH STREET,TRACY,CALIFORNIA <br /> PROJECT#5650 <br /> DERMAL CONTACT AND INCIDENTAL INGESTION OF SOIL-Non-cancer <br /> Oral Chronic <br /> Chemical Concentration Absorption Reference <br /> Sail(Cs) Fractions Soil Dose(RfDo) Quotient <br /> (AB Sds) <br /> (mg/kg) m k -d) <br /> Eth lbenzene 1.3 0.1 0.1 3.3E-04 <br /> Toluene 7.5 0.1 0.2 9.6E-04 <br /> Xylenes,Total 3.4 0.1 2 4.3E-05 <br /> Acenaphthene 0.76 0.15 0.06 4.0E-04 <br /> Benzo(a)anthracene 0.13 0.15 NA I NA <br /> Chrysene 0.54 0.15 NA NA <br /> Fluoranthene 0.098 0.15 0.04 7.5E-05 <br /> Fluorene 3.9 0.15 0.04 3.1E-03 <br /> Naphthalene 3.3 0.15 0.02 5.3E-03 <br /> Phenanthrene 5.1 0.15 0.3 5.4E-04 <br /> Pyrene 0.27 0.15 0.03 2.9E-04 <br /> 1E-02 <br /> Ham d, _ (1/Rf),) x C x IR_x EF x ED x 10`kg/mg <br /> BW x AT x 365 day/yr <br /> SA x AF x ABS x EF x ED x 10-`kg/mg <br /> + (1/RfDo) x C x <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 k <br /> Averaging Time-Non-cancer ATnc 6 yrs <br /> Ingestion Rate IRs 200 m d <br /> Surface Area SAs 2000 cm2 <br /> Soil-to-Skin Adherence Factor AF 1 In cm2 <br /> Ex osure Fre uenc -dermal contact EFdc 350 d/ <br /> Conversion Factor Crom mg to kg CFm .k 1E-06 kg/mg <br /> pombo\HQ soil Page 14 of 18 <br />