서울시 지하철역내의 라돈 농도분포 및 저감대책

Concentration Distributions and A Reduction Strategy of Airborne Radon in Seoul Metropolitan Subway Stations

  • 김동술 (경희대학교 환경학과 대기오염연구실) ;
  • 김윤신 (한양대학교 의과대학) ;
  • 김신도 (서울시립대학교 환경공학과) ;
  • 신응배 (한양대학교 토목공학과) ;
  • 김성천 (경희대학교 환경학과 대기오염연구실) ;
  • 유정석 (경희대학교 환경학과 대기오염연구실)
  • 발행 : 1993.12.01

초록

Indoor radon has been known as one of the notorious carcinogens. However, a safe environmental criterion of radon has not yet been established in Korea, The main objectives of this study were to study concentration distributions of radon, to trace radon sources in subways, and to obtain a strategy for radon reduction in Seoul metropolitan area. Radon concentrations had been extensively determined by several steps. The first step was to survey radon levels in all of 83 subway stations from October to November in 1991. The second step was to select 40 out of 83 stations and then to study seasonal variations in 1991 and 1992. The third step was to monitor radon levels by hourly-basis plans. The fourth step was to seek a radon reduction strategy by altering ventilation at Ankuk station where had the highest radon concentration during the first measurement step. Each underground floor in the station was divided into 10 sites to measure hourly radon variations. The final step of the study was to measure radon concentrations in groundwater that is one of the possible main sources radon place. The result of the various measuring approaches showed short-and long-term radon variation and indicated radon reduction schemes.

키워드

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