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1 <br /> TABLE 26 <br /> ESTIMATION OF AIR CONCENTRATIONS FOR NON-VOCS <br /> SURLAND HOMES-BRIDLE CREEK <br /> Tracy,San Joaquin County,California <br /> Construction Worker <br /> Scen <br /> Residential Scenario 1 Residential ario 2 Scenario <br /> COPC Cs m Ca(m /m') Cs(mg/kg) Ca(m /m' Cs m /k Cam /m') <br /> ' BTEX <br /> Toluene 0.0010 NA 0.0010 NA 0.0030 NA <br /> Eth lbenzene 0.0070 NA 0.0070 NA 0.0030 NA <br /> Xylene(s) 0.0050 NA 0.0010 NA 0.0030 NA <br /> PAHs <br /> Acenaphthene 0.29 NA 0.21 NA 0.18 NA <br /> Anthracene 0.26 1 NA 0.23 NA 0.14 NA <br /> Benzo(a)anthracene 0.19 1 9.5E-09 0.031 1.6E-09 0.058 2.9E-09 <br /> Benzo(a)pyrene 0.011 1 5.5E-10 0.0070 3.5E-10 0.0063 3.2E-10 <br /> Benzo b fluoranthene 0.056 1 2.8E-09 0.055 2.8E-09 0.054 2.7E-09 <br /> Benzo(g,hj)perYlcnc 0.21 1 1.1E-08 0.078 3.9E-09 0.058 2.9E-09 <br /> Benzo k fluoranthene 0.00067 3.4E-11 0.00067 3.4E-11 0.0067 3.4E-10 <br /> Ch Bene 0.11 5.5E-09 0.110 5.5E-09 0.063 3.2E-09 <br /> Dibenz a h anthracene 0.0073 3.7E-10 0.0067 3.4E-10 0.0073 3.7E-10 <br /> Fluoranthene 0.068 3.4E-09 0.066 3.3E-09 0.039 2.0E-09 <br /> Fluorene 0.87 NA 0.70 NA 0.57 NA <br /> Naphthalene 1.9 NA 0.61 NA 1.1 NA <br /> Phenanthrene 1.2 6.0E-08 0.88 4.4E-08 0.60 3.0E-08 <br /> Pyrene 0.19 9.5E-09 0.19 9.5E-09 0.099 5.0E-09 <br /> METALS <br /> Barium 230 1.2E-05 223 1.1E-05 211 1.1E-05 <br /> Beryllium 0.94 4.7E-08 0.93 4.7E-08 0.82 4.1E-08 <br /> Chromium Trivalent 48.0 1 2.4E-06 47 2.4E-06 44 2.2E-06 <br /> Cobalt 14.0 7.0E-07 13 6.5E-07 12 6.0E-07 <br /> Copper 185 9.3E-06 122 6.1E-06 103 5.2E-06 <br /> Lead 40 2.0E-06 12 6.0E-07 16 8.0E-07 <br /> ' <br /> Mercury 0.019 9.5E-10 0.015 7.5E-10 0.014 7.0E-10 <br /> Molybdenum 1.0 5.0E-08 0.82 4.1E-OS 0.71 3.6E-08 <br /> Nickel 43 2.2E-06 42 2.1E-06 39 2.0E-06 <br /> Vanadium 82.0 4.1E-06 81 4.1E-06 76 3.8E-06 <br /> Zinc 143 7.2E-06 113 5.7E-06 85 4.3E-06 <br /> Equation: <br /> Ca=Cs x(5 x 10-8 kg/m') <br /> Where: <br /> Ca=concentration in air,mg/m3 <br /> Cs=concentration is soil,mg/kg <br /> Abbreviations: <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> COPC=Constituent of potential concern <br /> mg/kg=Milligrams per kilogram <br /> mg/m'=Milligrams per cubic meter <br /> NA=Not Applicable because chemical is considered non- <br /> (PEA Manual) <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> VOCs=Volatile organic compounds <br /> Equation Source: <br /> PEA Manual,Figure 2.8. <br /> Pagel 0( <br /> ��,� <br />