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지하역사 깊이에 따른 라돈 농도 분포 KCI 등재

Airborne radon levels of by the depth of subway stations

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실내환경 및 냄새 학회지 (Journal of Odor and Indoor Environment)
한국냄새환경학회 (Korean Society Of Odor Research And Engineering)
초록

We investigated the distributions of airborne radon concentration on the platforms of the stations of Seoul Metro by the underground depth of each subway line, and explored the correlation between the radon concentration and the depth and geological conditions around each underground station. The measurements of radon levels were performed in 254 subway stations within Seoul Metro Lines 1 to 8 using the passive sampler (RADUET). Radon concentration data from 2007 to 2017, as well as the depth of each subway station were obtained from the Seoul Metro corporation. The geological information of each subway station were purchased from the Korea Institute of Geoscience and Mineral Resources. Student t-test and correlation analyses were performed to compare the levels of radon by the depth of subway stations, and to investigate the association of radon levels based on geological information. The geometric mean concentration of the all subway stations was 27.9 Bq/m3 ( range, 3 . 7Bq/ m3~124.0 Bq/m3). The depth of Lines 5-8 (geometric mean, –20.3 m) was significantly deeper by about 50% or more than that of Lines 1-4 (–13.1 m) (P<0.01). The radon levels increased significantly in deeper depths and as the number of Lines increased (P<0.05). A significant higher mean concentration of radon above the igneous rock (33.0 Bq/m3) was observed, comparing to that of non-igneous rock (27.5 Bq/m3) (P<0.00001). Our findings indicate that the deeper the subway is built or the more it is constructed on the granite area, the more careful management, including frequent ventilation and measurement monitoring, is necessary.

목차
Abstract
1. 서 론
2. 실험 방법
    2.1 지하철역사 선정
    2.2 라돈 농도 측정 및 변수 정보
    2.3 통계방법
3. 결과 및 고찰
    3.1 지하철 역사 깊이에 따른 라돈 농도 변화
    3.2 화강암 존재에 따른 라돈 농도 변화
4. 결 론
References
저자
  • 조민영(을지대학교 보건환경안전학과) | Min-Young Cho (Department of Environmental Health and Safety, College of Health Industry, Eulji University)
  • 이동현(㈜EHS 기술연구소) | Donghyun Lee (Institute for Environment Health and Safety (EHS))
  • 신석범(을지대학교 보건환경안전학과) | Seok-Beom Shin (Department of Environmental Health and Safety, College of Health Industry, Eulji University)
  • 이정우(을지대학교 보건환경안전학과) | Jeong-U Lee (Department of Environmental Health and Safety, College of Health Industry, Eulji University)
  • 이정학(을지대학교 보건환경안전학과) | Jeong-Hak Lee (Department of Environmental Health and Safety, College of Health Industry, Eulji University)
  • 서성철(을지대학교 보건환경안전학과) | SungChul Seo (Department of Environmental Health and Safety, College of Health Industry, Eulji University) Corresponding author