Predicting Radon Transport by Vegetationby Barbara-Ann G. Lewis, Northwestern Univ, Evanston, IL, USA,
Margaret M. MacDonell, Northwestern Univ, Evanston, IL, USA,
Abstract: Establishment of a vegetative cover on waste sites containing **2**2**6Ra (Radium) may provide conduits for transport of **2**2**2Rn (Radon) out of the waste into the above-ground environment via plant transpiration. In growth-chamber experiments, **2**2**2Rn released by C//3 and C//4 plant species did not appear to be directly related to water transpired but, rather, to total leaf area. A nomograph for estimating **2**2**2Rn exhalation by a plant cover is presented.
Subject Headings: Waste sites | Radioactive wastes | Radon | Waste disposal | Vegetation | Transportation engineering | Conduits
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