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Advisor(s)
Abstract(s)
Naturally Occurring Radioactive Materials (NORM) are materials that are found naturally in the environment and contain radioactive isotopes that can cause negative effects on the health of workers who manipulate them. Present in underground work like mining and tunnel construction in granite zones, these materials are difficult to identify and characterize without appropriate equipment for risk evaluation. The assessing methods were exemplified with a case study applied to the handling and processing of phosphoric rock where one found significant amounts of radioactive isotopes and consequently elevated radon concentrations in enclosed spaces containing these materials. © 2015 Taylor & Francis Group, London.
Description
Keywords
Construction equipment Isotopes Radioactive materials Radioactivity Radioisotopes Risk assessment Underground equipment
Citation
ESTEVEZ, J. G.; NUNES, Fernando Oliveira; - Naturally occurring radioactive materials: a method for assessing the risk of exposure. In SHO 2015, International Symposium on Safety and Hygiene. Guimarães: CRC Press/Balkema, 2015. ISBN. 978-113802765-7. pp 221-225