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APPENDIX C <br /> HUMAN HEALTH SCREENING EVALUATION <br /> BURNSPROPERTY <br /> 1887 PROPERTY,TRACY,CALIFORNIA <br /> PROJECT#5650 <br /> 0 <br /> PHYSICOCHEMICAL PROPERTIES <br /> Log Octanol Organic <br /> Water Carbon Molecular <br /> Henry's Law Henry's Law Aqueous Vapor Permeability Constant <br /> Chemical Partition Constant(H) Constant(H') Solubility(S) Diffusivity in Air(Di) Partition Weight Pressure(VP) VOC! (Kp), Absorption <br /> Coefficient(log Coefficient (MW) Fractions <br /> Koµ") (Koc) Soil(ABSds) <br /> given calculated given calculated <br /> (atm-m'/mole) unitless m /I (cm2/sec) (cm=/sec) 1/ /mole mm 11 (cm/hr) (cm/hr) <br /> Acenaphthene 3.92 1.20E-03 4.92E-02 3.88E+00 0.064 4.60E+03 1542 2 23E-03 Yes NA 0.092 0 15 <br /> Benzo(a)anthracene 5.66 3.35E-06 1.37E-04 9.40E-03 0.051 3 98E+05 228.3 5 31 E-07 No 0.81 0.15 <br /> Ch Bene 5.66 9.46E-05 3.88E-03 1.60E-03 0.025 3.98E+05 228.3 5 30E-09 No 0.81 0 15 <br /> Fluoranthene 4.95 1.61 E-OS 6.60E-04 2.06E-01 0.0302 1.07E+05 202.3 6 17E-05 No 0.36 0.15 <br /> Fluorene 4.21 6.42E-05 2.63E-03 1.90E+00 0.061 7.90E+03 166.2 2.35E-03 Yes NA 0123 015 <br /> Naphthalene 3.30 5.00E-04 2.05E-02 3.17E+01 0.069 1.29E+03 128.2 0 082 Yes 0.069 0.15 <br /> Phenanthrene 4.57 3.90E-05 1.60E-03 9.98E-01 NA 0.060 2.72E+04 178.24 4.44E-04 No 0.27 -- 015 <br /> jPy <br /> rene 5.11 1.10E-05 4.51E-04 1.35E-01 0.027 1.05E+OS 202.26 3.09E-OS No NA 0.310 0.15 <br /> H'= H•41 <br /> Source: Cal-EPA, 1994 <br /> Di= (0.00IT^1.75'(1/MWi+1/MWa)^0.5) <br /> (Pa"[(Vi)^1/3+(Va)^1/3)]^2) <br /> Source: See"Di Calculation"Worksheet <br /> Kp= 10^(-2.8+0.067logKow-0.0056MW) <br /> Source: U.S.EPA, 1998 <br /> For chemicals not listed in Table A-1 of the PEA Manual,a permeability constant was calculated based on U.S.EPA's Dermal Exposure Assessment Guidance(1998)instead of choosing a surrogate value <br /> from Table A-I based on similar values for MW and Kow as recommended in the PEA Manual. <br /> bums\phychem and abs Page 4 of 18 <br />