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-ATE AND TRANSPORT MODEL OUTPUT FOR: Toluene <br /> fart of model output for: <br /> lakilization from groundwater to outdoor air <br /> t----------------_____---------- <br /> VAPOR TRANSPORT FROM GROUNDWATER TO OUTDOOR AIR <br /> --------------------------------------------- <br /> rEffective Diffusion Coefficient for Lens <br /> Total thickness of subunit [cm]............... 6.00E+02 <br /> ' Air-filled porosity [-]....................... 0.10 <br /> Water-filled porosity [-]..................... 0.15 <br /> Total porosity [-]............................ 0.25 <br /> ' Effective diff. coeff. for subunit....[cm^2/s] 6.47E-04 <br /> Effective Diffusion Coefficient for Capillary Fringe <br /> Total thickness of subunit [cm]............... 50. <br /> Air-filled porosity [-]....................... 5.00E-03 <br /> Water-filled porosity [-]...I................. 0.24 <br /> Wotal porosity [-]............................ 0.25 <br /> ffective diff. coeff. for subunit....[cm^2/s] 4.68E-06 <br /> ' Overall Effective Diffusion Coefficient (for all layers) <br /> - <br /> Overall diffusion path length [cm]................. 4.87E+02 <br /> (Equals the sum of the vadose zone, lens, and capillary fringe) <br /> Overall effective diffusion coefficient [cm^2/s].,. 4.29E-05 <br /> ' Vapor Concentration and Flux at Source <br /> Initial vapor conc. at source [g/cm^3]............. 5.71E-10 <br /> ' Initial vapor conc. at source [mg/m"3]............. 0.57 <br /> Initial vapor flux rate [g/cm^2/s]................. 5.03E-17 <br /> Soil gas flow rate is zero (advection not considered in this model). <br /> OUTDOOR AIR CONCENTRATION <br /> Toluene <br /> Concentration <br /> Time Outdoors <br /> (yr) `(mg/m^3) <br /> 1.0 1.26E-09 <br /> This is a steady-state model. <br />