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Appl Radiat Isot. 2010 Jan;68(1):201-6. doi: 10.1016/j.apradiso.2009.10.003. Epub 2009 Oct 15.

Internal exposure from building materials exhaling (222)Rn and (220)Rn as compared to external exposure due to their natural radioactivity content.

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Institute of Nuclear Sciences "Vinca", P.O. Box 522, 11001 Belgrade, Serbia.


The main scope of this paper is to point out the importance of introducing radon and thoron exhalation measurements from building materials in the regulating frame. Currently (2009), such a regulation of this kind of exposure is not explicitly included in the Serbian regulating network. To this end, this work reports concentration measurements of (226)Ra, (232)Th and (40)K and radon and thoron exhalation rates from building materials used in Serbia. Following detailed analysis, it was noticed that both internal exposures to radon and/or thoron exhaling from building materials may exceed external exposures to their precursors contained therein.

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