Estimation of effective dose rates caused by radon and thoron for inhabitants living in rare earth field in northwestern Vietnam (Lai Chau province)

Le Khanh Phon, Bui Dac Dung, Nguyen Dinh Chau, Tibor Kovacs, Nguyen Van Nam, Duong Van Hao, Nguyen Thai Son, Vu Thi Minh Luan

Research output: Contribution to journalArticle


Forty six houses at three typical inhabitant villages that are located in the rare earth field in northwestern Vietnam were surveyed for radon and thoron concentrations. The measurements were conducted by exposing alpha track detectors CR-39 inside and outside of dwellings for 4 months. The results showed that houses adjacent to the rare earth ore bodies have significantly elevated radon concentrations. Annual committed effective doses originated from the inhalation of radon and thoron were estimated. The results showed that people living in the ore bodies areas would be exposed to the dose that could be 10 times higher than the world average.

Original languageEnglish
Pages (from-to)309-316
Number of pages8
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number1
Publication statusPublished - Oct 10 2015



  • Annual effective dose
  • Ore bodies area
  • Radon
  • Rare earth
  • Thoron

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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