Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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A Study of Radon Concentration in First Floor and Basement and Prediction of Annual Exposure Rate in Korea

국내 실내 라돈농도와 연간 피폭선량 예측에 관한 연구

  • Lee, Jong-Dae (Department of Environmental Health Science, Soonchunhyang University) ;
  • Kim, Yoon-Shin (Institute of environmental & Industrial Medicine, Hanyang University) ;
  • Son, Bu-Soon (Department of Environmental Health Science, Soonchunhyang University) ;
  • Kim, Dae-Seon (Environmental Epidemiology Division, NIER)
  • 이종대 (순천향대학교 환경보건학과) ;
  • 김윤신 (한양대학교 환경및산업의학연구소) ;
  • 손부순 (순천향대학교 환경보건학과) ;
  • 김대선 (국립환경과학원 환경역학과)
  • Published : 2006.04.01
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Abstract

The purpose of this study was to investigate Rn concentration and annual radiation exposure level in the basement and first floor. The Rn Cup monitors were placed in different environments such as shopping stage, office building, Apartment, Hospital, house in Seoul from Match 1996 to April 1997 and CR-39 films were collected every two months. The mean radon concentration in the basement of house($88.6\;Bq/m^3$) showed the highest level among the areas, while radon concentration on the first floor of house($50.5\;Bq/m^3$) showed the higher than other areas. The annual radiation exposure dose that person on the floor / in the basement of differential place in the seoul can be exposed during living was estimated from 24.11 to 87.64 mRem/yr. This radiation dose is significantly lower than 130mRem maximum radiation dosage from the radon nuclide prescribed by the ICRP, with respect to the overall average exposure of the working adult. this study indicated that possible radon sources on the first floor / in the basement areas are radon intrusion from soil gas, construction materials, or ground water leaking. Further study is needed to quantitatively assess major contributions of radon-222 and health effect to radon exposure.

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References

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