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Soil gas concentration values in the discontinuous clay layer scenario. Permeability of top and bottom homogeneous soil for this scenario are k=1×10−11 m2, and D eff = 8.68×10−7 m2/s. A. Profiles beneath the side with clay layer. B., Profiles beneath the side with no clay layer. Curve in Figure 8A is the same as the concentration profile in the continuous clay layer case.
