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=ATE ANIS TRANSPORT MODEL OUTPUT FOR: Ethylbenzene <br /> �rt of model output for: <br /> �blatilization from groundwater to outdoor air <br /> -------------------------------------- <br /> VAPOR TRANSPORT FROM GROUNDWATER TO OUTDOOR AIR <br /> ' ----- ------------------------- <br /> ' Effective Diffusion Coefficient for Lens <br /> ---------------------- <br /> Total thickness of subunit [cm]............... 6.00E+02 <br /> ' Air-filled porosity [-]....................... 0.10 <br /> Water-filled porosity [-1..........I_....... 0.15 <br /> Total porosity [-]............................ 0.25 <br /> Effective diff, coeff. for subunit....[cm^21s] 5.58E-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 [-]..................... 0.24 <br /> 14otal porosity [-]............................ 0.25 <br /> ffective diff. coeff. for subunit....[cm"21s] 3.58E-06 <br /> 1 Overall Effective Diffusion Coefficient (for all layers) <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^21s]... 3.30E-05 <br /> Vapor Concentration and Flux at Source <br /> Initial vapor cone. at source fg/cm"3]............. 2.78E-07 <br /> ' Initial vapor conc. at source [mglm"3]............. 2.78E+02 <br /> Initial vapor flux rate [glcm^21s]................. 1.88E-14 <br /> Soil gas flow rate is zero (advection not considered in this model). <br /> OUTDOOR AIR CONCENTRATION <br /> Ethylbenzene <br /> ' Concentration <br /> Time Outdoors <br /> (yr) (mg/m^3) <br /> —1,0 ------4 71 E-07 i <br /> This is a steady-state model. <br />