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i <br /> TABLE 11 <br /> ESTIMATED ORAL AND DERMAL CANCER RISKS FROM EXPOSURE TO SOIL <br /> US CAN-WELTY ROAD <br /> 35275 Welty Road <br /> Vernalis,California <br /> COPC Cs(mg/kg) SFo ABS Oral/Dermal Risk <br /> BTEX <br /> Benzene 0.0050 1.0E-01 0.1 1.7E-09 <br /> Toluene 0.033 NA 0.1 NA I <br /> Eth lbenzene 3.3 1.1E-02 0.1 1.3E-07 <br /> Total Xylenes 9.5 NA 0.1 NA <br /> PAHs <br /> Acenaphthene 0.00067 NA 0.15 NA I <br /> Anthracene 0.11 NA 0.15 NA <br /> Benzo(a)anthracene 0.0061 1.2E+00 0.15 3.2E-08 <br /> Benzo(a)pyrene 0.0063 1.2E+01 0.15 3.3E-07 <br /> Benzo b fluoranthene 0.013 1.2E+00 0.15 6.8E-08 <br /> Benzo(g,h,i)perylene 0.0018 NA 0.15 NA <br /> Benzo k fluoranthene 0.00067 1.2E+00 0.15 3.5E-09 <br /> Ch Bene 0.44 1.2E-01 0.15 2.3E-07 <br /> Dibenz ah anthracene 0.00067 4.1E+00 0.15 1.2E-08 <br /> Fluoranthene 0.65 NA 0.15 NA <br /> Fluorene 0.61 NA 0.15 NA I <br /> Indeno 1,2,3-c,d ene 0.00067 1.2E+00 0.15 3.5E-09 <br /> Naphthalene 3.6 NA 0.15 NA <br /> Phenanthrene 2.3 NA 0.15 NA r <br /> Pyrene 0.067 NA 0.15 1 NA I <br /> Total Estimated Risk: 8.1E-07 <br /> Equation: I <br /> Oral/Dermal Risk=(SFo x Cs x[1.57 x 10-6])+(SFo x Cs x[1.87 x 10-5]x ABS) <br /> Where: <br /> SFo=oral cancer slope factor,(mg/kg-day)-i <br /> Cs=concentration in soil,mg/kg <br /> ABS=absorption fraction,dimensionless(Source:PEA Manual,Page A-6). <br /> Abbreviations: I <br /> COPC=Constituent of potential concern <br /> mg/kg=Milligrams per kilogram I <br /> NA=Not applicable <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> Equation Source: I <br /> PEA Manual,Figure 2.3. <br /> I <br /> Page 1 of 1 SAIE' <br />