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Micro-analytical characterization of thorium-rich aggregates from Norwegian NORM sites (Fen Complex, Telemark).
Cagno, Simone; Lind, Ole Christian; Popic, Jelena Mrdakovic; Skipperud, Lindis; De Nolf, Wout; Nuyts, Gert; Vanmeert, Frederik; Jaroszewicz, Jakub; Janssens, Koen; Salbu, Brit.
Afiliación
  • Cagno S; Norwegian University of Life Sciences, Center of Excellence in Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, P.O. Box 5003, 1433 Ås, Norway. Electronic address: simone.cagno@nmbu.no.
  • Lind OC; Norwegian University of Life Sciences, Center of Excellence in Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, P.O. Box 5003, 1433 Ås, Norway.
  • Popic JM; Norwegian University of Life Sciences, Center of Excellence in Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, P.O. Box 5003, 1433 Ås, Norway; Norwegian Radiation and Nuclear Safety Authority (DSA), PO Box 329 Skøyen, 0213, Oslo, Norway.
  • Skipperud L; Norwegian University of Life Sciences, Center of Excellence in Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, P.O. Box 5003, 1433 Ås, Norway.
  • De Nolf W; European Synchrotron Radiation Facility, Avenue des Martyrs 71, 38043, Grenoble Cedex 9, France.
  • Nuyts G; AXES, University of Antwerp, Groenenborgerlaan 121, 2020, Antwerpen, Belgium.
  • Vanmeert F; AXES, University of Antwerp, Groenenborgerlaan 121, 2020, Antwerpen, Belgium.
  • Jaroszewicz J; Faculty of Materials Science, Warsaw University of Technology, Woloska 141, 02-507, Warsaw, Poland.
  • Janssens K; AXES, University of Antwerp, Groenenborgerlaan 121, 2020, Antwerpen, Belgium.
  • Salbu B; Norwegian University of Life Sciences, Center of Excellence in Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, P.O. Box 5003, 1433 Ås, Norway.
J Environ Radioact ; 219: 106273, 2020 Aug.
Article en En | MEDLINE | ID: mdl-32339145
In this study we performed microscopic characterization of mineral particles that were collected in the thorium-rich Fen Complex in Norway and identified and isolated based on autoradiography in function of their radioactivity. For this we combined information obtained with X-ray absorption µ-CT, µ-XRF and µ-XRD, both in bi- and in three-dimensional (tomographic) mode. We demonstrate that radionuclides and metals are heterogeneously distributed both within soil samples and within individual Th-enriched aggregates, which are characterised as low-density mineral bulk particles with high density material inclusions, where Th as well as several metals are highly concentrated. For these sites, it is important to take into account how these inhomogeneous distributions could affect the overall environmental behaviour of Th and progeny upon weathering due to human or environmental factors. Moreover, the estimated size of the Th-containing inclusions as determined in this work represents information of importance for the characterization of radionuclides and toxic metals exposure, as well as for assessing the viability of mining for Th and rare-earth metals in the Fen Complex and the associated environmental impact.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Monitoreo de Radiación Tipo de estudio: Prognostic_studies País/Región como asunto: Europa Idioma: En Revista: J Environ Radioact Asunto de la revista: SAUDE AMBIENTAL Año: 2020 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Monitoreo de Radiación Tipo de estudio: Prognostic_studies País/Región como asunto: Europa Idioma: En Revista: J Environ Radioact Asunto de la revista: SAUDE AMBIENTAL Año: 2020 Tipo del documento: Article Pais de publicación: Reino Unido