Comparison of excess radiological risk of building materials and industrial by-products according to I-index (EU-BSS) and revised room model (IAEA SSG-32)

Zoltan Sas, Wouter Schroeyers, Gergo Bator, Marios Soutsos, Wei Sha, Rory Doherty, Tibor Kovacs

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Abstract

To get a better insight into the radiological features of industrial by-products that can be reused in building materials a review of the reported scientific data can be very useful. The current study is based on the continuously growing database of the By-BM (H2020-MSCA-IF-2015) project (By-products for Building Materials). Currently, the By-BM database contains individual data of about 431 by-products and 1095 building and raw materials. It was found that in case of the building materials the natural radionuclide content varied widely (Ra-226: <DL-27851 Bq/kg; Th-232: <DL-906 Bq/kg, K-40: <DL-17922 Bq/kg), more so than for the by-products (Ra-226: 7-3152 Bq/kg; Th-232: <DL-1350 Bq/kg, K-40: <DL-3001 Bq/kg). The average Ra-226, Th-232 and K-40 contents of the reported by-products were respectively 2.52, 2.35 and 0.39 times higher than the building materials. The gamma exposure of bulk building products was calculated according to IAEA Specific Safety Guide No. SSG-32 and the European Commission Radiation Protection 112 based I-index (EU BSS). It was found that in most cases the I-index without density consideration provides a significant overestimation in excess effective dose.
Original languageEnglish
Publication statusPublished - 2016
EventEight International Symposium on Naturally Occouring Radioactive Materials - Rio de Janeiro, Rio de Janeiro, Brazil
Duration: 18 Oct 201621 Oct 2016
http://normviii.ird.gov.br/

Conference

ConferenceEight International Symposium on Naturally Occouring Radioactive Materials
Abbreviated titleNORMVIII
CountryBrazil
CityRio de Janeiro
Period18/10/201621/10/2016
Internet address

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