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' TABLE 14 <br /> ORAL AND DERMAL CANCER RISK: RESIDENTIAL SCENARIO 2 <br /> SURLAND HOMES-BRIDLE CREEK <br /> Tracy,San Joaquin County,California <br /> COPC Cs(mg/kg) SFo ABS Oral/Dermal Risk <br /> ' BTEX <br /> Toluene 0.0010 NA 0.1 NA <br /> Eth lbenzene 0.0070 1.1E-02 0.1 2.6E-10 <br /> ' <br /> Xylene(s) 0.0010 NA 0.1 NA <br /> PAHs <br /> Acenaphthene 0.21 NA 0.15 NA <br /> Anthracene 0.23 NA 0.15 NA <br /> ' <br /> Benzo(a)anthracene 0.031 1.2E+00 0.15 1.6E-07 <br /> Benzo(a)pyrene 0.0070 1.2E+O1 0.15 3.7E-07 <br /> Benzo fluommhene 0.055 1.2E+00 0.15 2.9E-07 <br /> Benzo(g,h,i)perylene 0.078 NA 0.15 NA <br /> ' Benzo k fluoranthene 0.00067 1.2E+00 0.15 3.5E-09 <br /> Ch Bene 0.110 1.2E-01 0.15 5.8E-08 <br /> Dibenz a,h anthracene 0.0067 4.1E+00 0.15 1.2E-07 <br /> ' Fluoranthene 0.066 NA 0.15 NA <br /> Fluorene 0.70 NA 0.15 NA <br /> Naphthalene 0.61 NA 0.15 NA <br /> Phenanthrene 0.88 NA 0.15 NA <br /> Pyrene 0.19 NA 0.15 NA <br /> METALS <br /> Barium 223 NA 0.01 NA <br /> ' <br /> Beryllium 0.93 NA 0.01 NA <br /> Chromium III 47 NA 0.01 NA <br /> Cobalt 13 NA 0.01 NA <br /> Copper 122 NA 0.01 NA <br /> ' Lead 12 8.5E-03 0.01 1.8E-07 <br /> Mercury 0.015 NA 0.01 NA <br /> Molybdenum 0.82NA 0.01 NA <br /> ' Nickel 42 NA 0.01 NA <br /> Vanadium 81 NA 0.01 NA <br /> Zinc 113 NA 0.01 NA <br /> Total Risk: 1.2E-06 <br /> Equation: <br /> Oral/Dermal Risk=(SFo x Cs x[1.57 x 101)+(SFo x Cs x[1.87 x 10-']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: <br /> BTEX=Benzene,toluene,ethylbeazene,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 /> ' <br /> Equation Source: <br /> PEA Manual,Figure 2.3. SF'w ,r <br /> Page 1 of 1 ` <br />