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A Study on the Distribution and Reduction Method of Indoor Radon Concentration in Daejeon Metropolitan City

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2022, 31(5), pp.286-295
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering
  • Received : June 7, 2022
  • Accepted : August 22, 2022
  • Published : November 2, 2022

Yong-Chul Jang 1 Jaehwan Yang 1 Hongkyoung Kim 1 LEE GAIN 1 Hakyun-Song 1 Byeong-Hwan Kim 1 Youngsun Kwon 2

1충남대학교
2충남대학교 환경공학과

Accredited

ABSTRACT

In this study, the concentration distribution of indoor radon in Daejeon Metropolitan City was investigated and the reduction efficiency was evaluated by applying the radon reduction methods. Based on the results of the National Institute of Environmental Research, indoor radon measurements were conducted on 24 selected houses, and the average value of District A was 261 Bq/m3, far exceeding the standard, and even in the same house, indoor radon concentration was affected by measurement point and time. In the case of eight houses that applied the soil venting method to reduce radon, the indoorradon level was significantly lowerthan the standard value, and the average reduction efficiency was also around 55%, indicating a good reduction effect. In addition, the average reduction efficiency was around 90% in the two houses that carried out the shielding method, showing the very excellent effect of the indoorradon reduction. Even if the same reduction method is applied when reducing radon, the reduction efficiency may vary depending on various factors such as the structure of the building, the frequency of ventilation, and the season, so it is necessary to accurately evaluate the effectiveness of the reduction method in the future. Based on this, it is necessary to establish indoor radon management measures in Daejeon Metropolitan City to reduce human harm caused by radon exposure.

Citation status

* References for papers published after 2022 are currently being built.