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A study on the Prediction of Indoor Concentration due to Radon Exhalation from Domestic Building Materials

건축자재 라돈 방출에 의한 실내공기 중 라돈농도 예측에 관한 연구

Lee, Cheolmin;Gwak, Yoonkyung;Lee, Donghyun;Lee, Dajeong;Cho, Yongseok
이철민;곽윤경;이동현;이다정;조용석

  • Received : 2015.05.29
  • Accepted : 2015.08.28
  • Published : 2015.09.30

Abstract

Radon exhalation rates have been determined for samples of concrete, gypsum board, marble, and tile among building materials that are used in domestic construction environment. Radon emanation was measured using the closed chamber method based on CR-39 nuclear track detectors. The radon concentrations in apartments of 100 households in Seoul, Busan and Gyeonggi Provinces were measured to verify the prediction model of indoor radon concentration. The results obtained by the four samples showed the largest radon exhalation rate of $0.34314Bq/m^2{\cdot}h$ for sample concrete. The radon concentration contribution to indoor radon in the house due to exhalation from the concrete was $31.006{\pm}7.529Bq/m^3$. The difference between the prediction concentration and actual measured concentration was believed to be due to the uncertainty resulting from the model implementation.

Keywords

Radon emanation;Radon exhalation rates;Building materials;Nuclear track detector(NTD);Prediction model

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Cited by

  1. The Disease Burden of Lung Cancer Attributable to Residential Radon Exposure in Korean Homes vol.33, pp.29, 2018, https://doi.org/10.3346/jkms.2018.33.e223
  2. Indoor radon concentration in Korea residential environments vol.25, pp.13, 2018, https://doi.org/10.1007/s11356-018-1531-3

Acknowledgement

Supported by : 환경부