Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1738529 | Journal of Environmental Radioactivity | 2010 | 7 Pages |
Abstract
Galicia (NW Spain) is a radon-prone area in the Iberian Peninsula. Measurements were carried out at a rural dwelling, with an annual average of radon concentration over 4000 Bq mâ3 and a maximum of 9000 Bq mâ3, found during a radon screening campaign held in the Autonomous Community of Galicia. We performed a detailed study to identify the main contamination source and the behaviour of the radon concentration, in which a linear dependence with temperature was verified, once corrected for relative humidity. We used different passive methods (charcoal canisters and two types of etched track detectors) as well as a radon concentration monitor that provided continuous measurement. Subsequent to this characterization, and in order to reduce the high radon concentration, a remedial action was developed using different passive and forced ventilation methods. A modified subslab depressurization technique was found to be the most effective remedy, providing a radon concentration reduction of around 96%. This method also has the advantages of being inexpensive and reliable over time.
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Nuclear Energy and Engineering
Authors
J.J. Llerena, D. Cortina, I. Durán, R. Sorribas,