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TABLE 20 <br /> ESTIMATION OF AIR CONCENTRATIONS FOR <br /> ' NON-VOCS IN SOILS <br /> SURLAND HOMES--BRIDLE CREEK <br /> Tracy, California <br /> ' Constituent in Soil Cs(mg/kg) Ca(mg/m3} <br /> BTEX <br /> ' Toluene 0.028 LVA <br /> Eth lbenzene 1.5 NA <br /> X leve s 1.5 NA <br /> PAHs <br /> Acenaphthene 0.17 NA <br /> Anthracene 0.090 NA <br /> ' Benzo(a)anthracene 0.032 1.6E-09 <br /> Benzo(a)pXrene 0.0046 2.3E-10 <br /> Benzo b fluoranthene 0.024 1.2E-09 <br /> Benzo ,h,i a leve 0.040 2.0E-09 <br /> ' Chr rene 0.081 4.1E-09 <br /> Dibenz a,h anthracene 0.0068 3.4E-10 <br /> Fluoranthene 0.027 1.3E-09 <br /> Fluorene 0.48 NA <br /> Na hthalene 0.36 NA <br /> Phenanthrene 1.8 9.0E-08 <br /> ' <br /> Pyrene 0.074 3.7E-09 <br /> METALS <br /> Barium 211 1.1E-05 <br /> Beryllium 0.82 4.1E-08 <br /> Chromium Trivalent 43.7 2.2E-06 <br /> Cobalt 12.0 6.0E-07 <br /> Copper 103 5.2E-06 <br /> ' Lead 16.3 8.1E-07 <br /> Mercury 0.019 9.7E-10 <br /> Molybdenum 0.71 3.6E-08 <br /> ' Nickel 39.1 2.0E-06 <br /> Vanadium 76.4 3.8E-06 <br /> Zinc 84.6 4.2E-06 <br /> ' Equation: <br /> Ca=Cs x(5 x 10kg/m3) <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 /> mg/kg=Milligrams per kilogram <br /> mg/m3=Milligrams per cubic meter <br /> NA=Not Applicable because chemical is considered non-volatile <br /> (PEA Manual) <br /> PAHs=Polynuclear aromatic hydrocarbons <br /> PEA=Preliminary Endangerment Assessment <br /> I VOCs=Volatile organic compounds - - <br /> Equation Source: <br /> PEA Manual,Figure 2.8. ZZ <br /> ' Page 1 of 1 FIDm Science to Schitlons <br />