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2015 | 60 | 3 | 597-602

Article title

Review of international normatives for natural radioactivity determination in building materials


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Anthropogenic activities, such as high-altitude flights and living in buildings, have enhanced the public exposure to natural radiation. In particular, 40K and radionuclides belonging to 232Th and 238U decay chains are present even in building materials, and they may be considered as partially responsible for the effective dose coming from natural radioactivity. Scientists and governments have devoted great attention to the evaluation of the effects produced on the public by naturally occurring radionuclides. In this context, to evaluate the building materials acceptability, accurate and reliable methods for the measurement of the specific activity of natural radioactive isotopes in building materials have been developed. This paper aims to provide a clear and exhaustive review on natural radionuclide measurement procedures. Several standard national normatives (Dutch NEN 5697, Italian UNI 10797, Polish ITB 455), based on gamma spectrometry, have been considered and some critical issues were identified regarding the preparation and the radiometric measuring of the samples. Therefore, the direct measurement of 238U and 232Th by ICP-MS spectrometry as well as the extrapolation of the specific activities without waiting for secular equilibrium have been considered as two promising alternative approaches.










Physical description


1 - 9 - 2015
20 - 5 - 2015
24 - 9 - 2014
25 - 9 - 2015


  • Department of Energy, Politecnico di Milano, Piazza L. da Vinci 32, Milano, I-20133, Italy
  • Department of Energy, Politecnico di Milano, Piazza L. da Vinci 32, Milano, I-20133, Italy
  • Department of Energy, Politecnico di Milano, Piazza L. da Vinci 32, Milano, I-20133, Italy
  • Department of Energy, Politecnico di Milano, Piazza L. da Vinci 32, Milano, I-20133, Italy


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