Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
권호 표지

Assessment of Airborne Bacteria and Particulate Matters Distributed in Seoul Metropolitan Subway Stations

서울시 일부 지하철역 내 분포하는 부유 세균 및 입자상 오염물질 평가

  • Kim, Ki-Youn (Department of Preventive Medicine & Public Health, School of Medicine, Ajou University) ;
  • Park, Jae-Beom (Department of Preventive Medicine & Public Health, School of Medicine, Ajou University) ;
  • Kim, Chi-Nyon (Institute for Occupational Health, College of Medicine, Yonsei University) ;
  • Lee, Kyung-Jong (Department of Preventive Medicine & Public Health, School of Medicine, Ajou University)
  • 김기연 (아주대학교 의과대학 예방의학교실) ;
  • 박재범 (아주대학교 의과대학 예방의학교실) ;
  • 김치년 (연세대학교 의과대학 산업보건연구소) ;
  • 이경종 (아주대학교 의과대학 예방의학교실)
  • Published : 2006.08.01
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Abstract

In activity areas of subway workers and passengers in Seoul metropolitan subway lines 1-4, mein concentrations of airborne bacteria were relatively higher in workers' bedroom and station precinct whereas concentrations of particulate matters, $PM_{10}$ and $PM_{2.5}$, were relatively higher in platform, inside train and driver's seat as compared with other activity areas. This result indicates that little correlation between airborne bacteria and particulate matters was found, which assumed that most airborne particulate matters distributed in subway consisted of mainly inorganic dust like a metal particles. Mean concentrations of $PM_{10}$ and $PM_{2.5}$ in station precinct and platform exceeded the threshold limit value ($PM_{10}:150{\mu}g/m^3,\;PM_{2.5}:65{\mu}g/m^3$) but those in station office and ticket office were below it. The genera identified in all the activity areas of subway over 5% detection rate were Staphylococcus, Micrococcus, Bacillus and Corynebacterium, of which Staphylococcus and Micrococcus covered over 50% of total airborne bacteria and were considered as predominant genera distributed in subway.

Keywords

References

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