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cur ri r rE it r rr� <br /> INTERMEDIATE CATIONS SHEET S <br /> Benzene <br /> Vadose Vadose zone Vadose zone Vadose zone Vadose zone Total Air-filled Water-filled Floor- <br /> Source- zone$ad effective sod soil soil Thickness of porosity in porosity in porosity in wall <br /> budding air-filled total fluid intrinsic relative air effective vapor capillary capillary capillary capillary seam <br /> separation porosity saturation permeability, permeability permeability zone zone zone zone perimeter <br /> LT eav 5oe ki km k„ La na ea¢ 0w' x rack <br /> cm <br /> (cm'/cm) (CMI/cm) (cm2) (cm) (cm2) cm (Cm3/cm) (cm'lcm) (cm'/cm) cm <br /> 103656 1 0 322 1 0 267 6 91 E-09 0 830 5 73E-09 16304 0 489 0107 0 382 4,000 <br /> Area of Capillary Total <br /> enclosed Crack- Crack Enthalpy of Henrys law Henrys law Vapor Vadose zone zone overall <br /> Bldg space to-total depth vaporization at constant at constant at viscosity at effective effective effective <br /> ventilation below area below ave groundwater ave groundwater ave groundwater ave sod diffusion diffusion diffusion <br /> rate grade ratio grade temperature temperature, temperature temperature, coefficient, coefficient coefficient <br /> Q"Aj' Aa n Z..a AHTs HTs H'Ts RTS D„'v Det'= D~'T <br /> (Cm315) (cmz) uni0ess cm cavmo (atm-m'/mol) undless cm s (cmZrs) (Cm21s) (cm2/5) <br /> 3 39E+04 1 00E+06 5 OOE-03 15 7.977 5 29E-03 2 17E-01 1 80E-04 8 45E-03 2 25E-04 1 25E-03 <br /> Exponent of Infinite <br /> Average Crack equivalent source Infinite <br /> Diffusion Convection Source vapor effective foundation indoor source Una <br /> path path vapor Crack flow rate diffusion Area of Pedet attenuation bldg nsk Reference <br /> length length, conc, radius, into bldg coefficient, crack number coefficient cont factor, conc, <br /> Ld Lo CIMMO raw* O.1 D-4c" A...k exp(Per) a Ceu,m URF RfC <br /> (cml (cm) (µfilm) (cm) (cm'ls) (cm21s) (cm) unrdess unitless (µg/rn) (u91m)' (mglm) <br /> 1036 56 15 217E+02 125 8 33E+01 8 45E-03 5 DOE+03 3 65E+08 3 52E-05 7 63E-03 2 9E-05 3 OE-02 <br /> benzene xis <br /> DTSC 1 HERD DTSC Indoor Air Guidance 7/19/2005 <br /> Last Update 1111103 Unclassified Sod Scmning Model 144 PM <br /> I <br />