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TABLE 14 <br /> ESTIMATED ORAL AND DERMAL HAZARDS FROM EXPOSURE TO SOIL <br /> US CAN-WELTY ROAD <br /> 35275 Welty Road <br /> Vernalis, California <br /> ' COPC Cs(mg/kg) RfDo ABS Oral/Dermal HQ <br /> BTEX <br /> Benzene 0.0050 4.0E-03 0.1 3.2E-05 <br /> ' Toluene 0.033 8.0E-02 0.1 1.0E-05 <br /> Eth Ibenzene 3.3 1.0E-01 0.1 8.6E-04 <br /> Total Xylenes 9.5 2.0E-01 0.1 1.2E-03 <br /> ' PAHs <br /> Acenaphthene 0.00067 6.0E-02 0.15 3.6E-07 <br /> Anthracene 0.11 3.0E-01 0.15 1.2E-05 <br /> Benzo(a)anthracene 0.0061 NA 0.15 NA <br /> ' <br /> Benzo(a)pyrene 0.0063 NA 0.15 NA <br /> Benzo b fluoranthene 0.013 NA 0.15 NA <br /> Benzo(g,h,i)perylene 0.0018 NA 0.15 NA <br /> 1 Benzo k fluoranthene 0.00067 NA 0.15 NA <br /> Chrysene 0.44 NA 0.15 NA <br /> Dibenz a,h anthracene 0.00067 NA 0.15 NA <br /> ' Fluoranthene 0.65 4.0E-02 0.15 5.2E-04 <br /> Fluorene 0.6 4.0E-02 0.15 4.9E-04 <br /> Indeno 1,2,3-c,d ene 0.00067 NA 0.15 NA <br /> Naphthalene 3.6 2.0E-02 0.15 5.8E-03 <br /> ' Phenanthrene 2.3 NA 0.15 NA <br /> Pyrene 0.067 3.0E-02 0.15 7.1 E-05 <br /> Total Estimated Hazard: 9.0E-03 <br /> ' Equation: <br /> Oral/Dermal HQ=([Cs/RfDo]x[1.28 x 10-5])+([Cs/RfDo])x[1.28 x 104]x ABS) <br /> ' Where: <br /> RfDo=oral reference dose,mg/kg-day. <br /> Cs=concentration in soil,mg/kg <br /> 1ABS=absorption fraction,dimensionless(Source:PEA Manual,Page A-6). <br /> HQ=hazard quotient <br /> Abbreviations: <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> COPC=Constituent of potential concern <br /> mg/kg=Milligrams per kilogram <br /> NA=Not applicable <br /> ' PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> Equation Source: <br /> ' PEA Manual,Table 2.3. <br /> ' Page 1 of I SAIF <br />