Dose estimation and radon action level problems due to nanosize radon progeny aerosols in underground manganese ore mine

Norbert Kávási, Tamás Vigh, T. Kovács, Janja Vaupotič, Viktor Jobbágy, Tetsuo Ishikawa, Hidenori Yonehara

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

One of the essential parameters influencing of the dose conversion factor is the ratio of unattached short-lived radon progeny. This may differ from the value identified for indoor conditions when considering special workplaces such as mines. Inevitably, application of the dose conversion factors used in surface workplaces considerably reduces the reliability of dose estimation in the case of mines. This paper surveyed the concentration of radon and its short-lived radon progeny and identified the unattached fraction of short-lived radon progeny. As well equilibrium factor during the month of August was calculated simultaneously at two extraction faces in a manganese ore mine. During working hours the average radon concentrations were 220 Bq m-3 and 530 Bq m-3 at Faces 1 and 2; the average short-lived progeny concentration was 90 Bq m-3 and 190 Bq m-3, the average equilibrium factors were 0.46 and 0.36, and the average unattached fractions were 0.21 and 0.17, respectively. The calculated dose conversion factor was between 9 and 27 mSv WLM-1, but higher values could also be possible.

Original languageEnglish
Pages (from-to)806-812
Number of pages7
JournalJournal of Environmental Radioactivity
Volume102
Issue number9
DOIs
Publication statusPublished - Sep 2011

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Radon
Manganese
Aerosols
radon
Ores
Dosimetry
manganese
aerosol
workplace
Workplace
dose
ore

Keywords

  • Dose conversion factor
  • Dose estimation
  • Manganese ore mine
  • Radon
  • Radon progeny
  • Unattached fraction

ASJC Scopus subject areas

  • Environmental Chemistry
  • Health, Toxicology and Mutagenesis
  • Waste Management and Disposal
  • Pollution

Cite this

Dose estimation and radon action level problems due to nanosize radon progeny aerosols in underground manganese ore mine. / Kávási, Norbert; Vigh, Tamás; Kovács, T.; Vaupotič, Janja; Jobbágy, Viktor; Ishikawa, Tetsuo; Yonehara, Hidenori.

In: Journal of Environmental Radioactivity, Vol. 102, No. 9, 09.2011, p. 806-812.

Research output: Contribution to journalArticle

Kávási, Norbert ; Vigh, Tamás ; Kovács, T. ; Vaupotič, Janja ; Jobbágy, Viktor ; Ishikawa, Tetsuo ; Yonehara, Hidenori. / Dose estimation and radon action level problems due to nanosize radon progeny aerosols in underground manganese ore mine. In: Journal of Environmental Radioactivity. 2011 ; Vol. 102, No. 9. pp. 806-812.
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