Geographical distribution of indoor radon and related geological characteristics in Bonghwa County, a provisional radon-prone area in Korea.
The detailed indoor radon survey was conducted during a year (from September 2012 to August 2013) quarterly in Bonghwa county, one of the provisional radon-prone areas in Korea. The surveyed area was selected on the basis of previously conducted nationwide radon survey results. In order to minimise statistical and environmental uncertainties, ∼3 % of the entire dwellings were carefully selected based on the statistical annual report of Bonghwa county. The measurement is carried out by using solid-state nuclear track detector. The range of indoor radon concentration in each dwelling was 4.36-858 Bq m(-3) and that of annual effective dose due to inhaled radon of the resident in each dwelling was 0.19-23.5 mSv y(-1). Each dwelling was determined for geology criterion using one-way Analysis of Variance for the purpose of comparing indoor radon distribution with geology. Geographical distribution of indoor radon is closely related to the geological characteristics of basement rocks. In addition, the comparison between geographical distribution of indoor radon and terrestrial gamma radiation was done.
Korea University of Science and Technology, Gajeong-ro 217, Yuseong-gu, Daejon 305-350, Korea.
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Lee
Korea University of Science and Technology, Gajeong-ro 217, Yuseong-gu, Daejon 305-350, Korea Korea Institute of Nuclear Safety, Gwahak-ro 62, Yuseong-gu, Daejon 305-338, Korea hafadai@kins.re.kr.
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Chang
Korea Institute of Nuclear Safety, Gwahak-ro 62, Yuseong-gu, Daejon 305-338, Korea.
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Kim
Korea Institute of Nuclear Safety, Gwahak-ro 62, Yuseong-gu, Daejon 305-338, Korea.
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Song
Korea University of Science and Technology, Gajeong-ro 217, Yuseong-gu, Daejon 305-350, Korea Korea Institute of Nuclear Safety, Gwahak-ro 62, Yuseong-gu, Daejon 305-338, Korea.
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Kim
D000396:Air Pollutants, Radioactive / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D005844:Geology; D006798:Housing; D006801:Humans; D011834:Radiation Monitoring / Q000379:methods*; D011886:Radon / Q000032:analysis*; D056910:Republic of Korea
D000396:Air Pollutants, Radioactive; D011886:Radon