Verifying a Model of Radon Decay Product Behavior Indoors

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Abstract
Where it is not feasible to reduce Rn levels in houses, exposure to Rn decay products may still be reduced through air filtration or other air treatment techniques. A model which accurately described the behavior of decay products indoors would be helpful to development or improvement of such air treatment techniques. A minor modification of a well-known model to describe the behavior and fate of Rn decay products in the average indoor environment was used and the adequacy of the model to predict the impact of a variety of air treatment techniques on indoor Rn decay product levels was examined. The indoor environment was successfully described by the model and plate-out of Rn decay products on surfaces was much less than previous work had suggested. The model provided a plausible explanation of the effectiveness of a variety of technique that removed Rn decay products from the air.

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