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1 <br /> TABLE 12 <br /> ' INHALATION HAZARD: RESIDENTIAL SCENARIO 1 <br /> SURLAND HOMES-BRIDLE CREEK <br /> Tracy,San Joaquin County,California <br /> COPC Cs(mg/kg) Ca;,(mg/mx) RIM Inhalation HQ <br /> BTEX <br /> Toluene0.0010 2.8E-08 8.6E-02 2.0E-07 <br /> Eth Ibenzene 0.0070 1.5E-07 5.7E-01 1.7E-07 <br /> Xylene(s) 0.0050 1.1E-07 2.0E-01 3.6E-07 <br /> ' PAHs <br /> Acenaphthene 0.29 6.1E-07 6.0E-02 6.4E-06 <br /> Anthracene 0.26 5.3E-08 3.0E-01 1.1E-07 <br /> Benzo(a)anthracene 0.19 1.6E-09 NA NA <br /> ' Benzo a ene 0.011 3.5E-10 NA NA <br /> Benzo fluoranthene 0.056 2.8E-09 NA NA <br /> Benzo ,h,i a lene 0.21 3.9E-09 NA NA <br /> Benzo fluoranthene 0.00067 3.4E-11 NA NA <br /> Chrysene 0.11 5.5E-09 NA NA <br /> Dibenz a h anthracene 0.0073 3.4E-10 NA NA <br /> Fluoranthene 0.068 3.3E-09 4.0E-02 5.3E-08 <br /> ' Fluorene 0.87 3.1E-07 4.0E-02 5.0E-06 <br /> Naphthalene 1.9 5.0E-06 2.6E-03 1.2E-03 <br /> Phenanthrene 1.2 4.4E-08 NA NA <br /> Pyrene 0.19 9.5E-09 3.0E-02 2.0E-07 <br /> ' METALS <br /> Barium 230 I.IE-05 2.0E-01 3.6E-05 <br /> Beryllium 0.94 4.7E-08 5.7E-06 5.2E-03 <br /> ' Chromium III 48 2.4E-06 1.5E+00 1.0E-06 <br /> Cobalt 14 6.5E-07 NA NA <br /> Copper 185 6.1E-06 NA NA <br /> Lead 40 6.0E-07 NA NA <br /> ' <br /> Mercury 0.019 7.5E-10 2.6E-05 1.8E-05 <br /> Molybdenum 1.0 4.1E-08 5.0E-03 5.2E-06 <br /> Nickel 43 2.1E-06 1.4E-05 9.6E-02 <br /> ' Vanadium 82.0 4.1E-06 5.0E-03 5.2E-04 <br /> Zinc 143 5.7E-06 3.0E-01 1.2E-05 <br /> Total Hazard Index: 1.0E-01 <br /> ' Equation: <br /> Inhalation HQ=(C,;,/RfDi)x 0.639 <br /> ' Where: <br /> RfDi=the inhalation reference dose,mg/kg-day <br /> C,;,=concentration in air,mg/m3 <br /> HQ=hazard quotient <br /> (Note:Using the PEA Manual,the value for Ca;,is estimated using Figures 2.5,2.6&2.7 for <br /> VOCs and Figure 2.8 for non-VOCs.) <br /> Abbreviations: <br /> ' BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> COPC=Consiment of potential concern <br /> mg/kg=Milligrams per kilogram <br /> mg/m'=Milligrams per cubic meter <br /> ' NA=Not Applicable <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> VOCs=Volatile organic compounds <br /> ' Equation Source: <br /> PEA Manual,Table 2.4. SAIE <br /> ' Page 1 of I <br />