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  • Title: Effective dose of miners due to natural radioactivity in a manganese mine in Hungary.
    Author: Kávási N, Vigh T, Sorimachi A, Ishikawa T, Tokonami S, Hosoda M.
    Journal: Radiat Prot Dosimetry; 2010 Oct; 141(4):432-5. PubMed ID: 20876071.
    Abstract:
    In this study, short-term radon (RnDP) and thoron (TnDP) progeny measurements and dose estimation were carried out in winter and summer in a manganese mine, Hungary. Gamma-ray dose rate originating from external sources and (222)Rn and (226)Ra contents of spring-water from a mine was also measured. During working hours RnDP and TnDP concentration values changed between 12.1-175 and 0.14-0.42 Bq m(-3), respectively. The (222)Rn and (226)Ra concentration values in the karst spring-water were ∼6 Bq dm(-3) and 16 mBq dm(-3), respectively. The radiation dose resulting from the consumption of karst spring-water was negligible. The doses from the inhalation of TnDP and external gamma radiation were of the same magnitude, ∼0.1 mSv y(-1), which was rather negligible related to the estimated radiation dose of 5 mSv y(-1) from RnDP.
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