Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Analysis of air pollution in subway area of Busan Metropolitan City

부산광역시 지하철역 지하공간의 대기오염 특성

  • Lee, Hwa-Woon (Department of Atmospheric Sciences, Pusan National University) ;
  • Jang, Nan-Sim (Department of Atmospheric Sciences, Pusan National University) ;
  • Kwak, Jin (Department of Environmental System, Pusan National University) ;
  • Lee, Hee-Ryung (Department of Environmental System, Pusan National University) ;
  • Kim, Hee-Man (Department of Environmental System, Pusan National University)
  • 이화운 (부산대학교 대기과학과) ;
  • 장난심 (부산대학교 대기과학과) ;
  • 곽진 (부산대학교 환경시스템학과) ;
  • 이희령 (부산대학교 환경시스템학과) ;
  • 김희만 (부산대학교 환경시스템학과)
  • Published : 2002.03.01
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Abstract

The purpose of this study is designed to estimate the air quality of subway stations that have the underground platforms in Pusan Metropolitan City, from September to November 2000, over seven times. The subjects include Yonsan-dong station, Somyon station, Pusan station, Nampo-dong station, and Tushil station. The samplings were conducted at three points of each station, i.e. gate, ticket gates, and platforms. The major materials for analysis were CO, NO, NO$_2$, and $O_3$. The experiment was conducted at 7:00 pm with KIMOTO HS-seven Handy sampler and Tedlar Bag of SKC INC(U.S.A). In order to more fully understand station environments, we also measured temperature at each point. The results showed that $O_3$ average concentration at Yonsan-dong station was higher than others with 38~51 ppb. The average concentration of NO was high at ticket gate and platform at Somyon station(119 ppb, 122 ppb), Nampo-dong station(102 ppb, 100 ppb). These results show that the air pollution of stations with underground shopping malls was higher than others. At Somyon station having a junction station, NO and NO$_2$ concentration level of platform-2(noncrowded) was higher than platform-1(crowded). This is most likely due to the accumulation of air pollutants and inadequate ventilation systems.

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