Abstract
A method measuring the radon flux density (RFD) from the soil surface before the construction allows to assess the volumetric activity of radon (VAR) inside a dwelling after the construction. Data on RFD and VAR values is scarce in case of Uzbekistan. The current work presents the results of research on RFD on the soil surface at six sites in the southern regions of Uzbekistan. Measurements were carried out at 150 control points, with RFD ranging from 16.0 ± 2.7 mBq×m-2×s-1 to 151.7 ± 15.0 mBq×m-2×s-1. A passive adsorption method of radon on activated charcoal followed by measurement of the activity of the sorption columns on a NaI(Tl) gamma spectrometer was used in the study.
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