Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
권호 표지

A Study of PM levels in Subway Passenger Cabins in Seoul Metropolitan area

서울시 지하철 객차내에서의 미세먼지 농도 평가

  • Roh, Young-Man (Institute of Environmental and Industrial Medicine, Hanyang University) ;
  • Park, Wha Me (Institute of Environmental and Industrial Medicine, Hanyang University) ;
  • Lee, Choel Min (Institute of Environmental and Industrial Medicine, Hanyang University) ;
  • Kim, Yoon Shin (Institute of Environmental and Industrial Medicine, Hanyang University) ;
  • Park, Dong Sun (EpludT Co., Ltd) ;
  • Kim, Suck Won (Korean Industrial Health Association)
  • 노영만 (한양대학교 환경 및 산업의학연구소) ;
  • 박화미 (한양대학교 환경 및 산업의학연구소) ;
  • 이철민 (한양대학교 환경 및 산업의학연구소) ;
  • 김윤신 (한양대학교 환경 및 산업의학연구소) ;
  • 박동선 (주) 이플러스티) ;
  • 김석원 (대한산업보건협회)
  • Received : 2006.07.21
  • Accepted : 2007.01.12
  • Published : 2007.03.30
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Abstract

This study was performed to investigate the concentrations of PM($PM_{10}$, $PM_{2.5}$, $PM_{1}$) and it's affecting factors in the subway from line 1 to line 8 in Seoul metropolitan area, from Sep. 1 to 30, 2005. PM concentrations were measured at the entrances and centers in subway passenger cabins by a light scattering equipment. And the affecting factors to PM were estimated based on the number of passenger, door open and close and running area etc. The geometric means of $PM_{10}$, $PM_{2.5}$ and $PM_{1}$ concentration in Seoul subway passenger cabins were $214{\mu}g/m^3$, $86.6{\mu}g/m^3$ and $27.0{\mu}g/m^3$, respectively. These mean concentrations in subway carriage were higher when it ran on an underground track than on a ground track. And running time(7AM-9AM, 11AM-13PM, 6PM-8PM) significantly influenced to the concentrations of $PM_{10}$, $PM_{2.5}$ and $PM_{1}$. Daily profile of $PM_{10}$ and $PM_{2.5}$, $PM_{1}$ expressed as an 10 minutes average, showed similar variation pattern over day period. In correlation analysis, significant relations among $PM_{10}$, $PM_{2.5}$ and $PM_{1}$ were detected(p〈0.01). In particular, correlation coefficient between $PM_{10}$and $PM_{1}$ was highly significant(r=0.94). Further study is needed to identity the sources of PM in subway cabins and to compare pollutants concentration among subway lines.

Keywords

References

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