Atmosphere (대기)

Korean Meteorological Society (한국기상학회)
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Dependence of Total and Carbonaceous Aerosol Concentrations on Transport Pathways in Seoul, Korea

공기 궤 유입경로에 따른 한반도 서울 상공의 전체 및 유기 에어로졸 농도 변화 분석

  • Jeong, Ukkeo (Global Environment Laboratory/Department of Atmospheric Science, Yonsei University) ;
  • Kim, Jhoon (Global Environment Laboratory/Department of Atmospheric Science, Yonsei University) ;
  • Kim, Young J. (Department of Environmental Science & Engineering, Gwangju Institute of Science & Technology (GIST)) ;
  • Jung, Jinsang (Korean Research Institute of Standards and Science)
  • 정욱교 (연세대학교 지구환경연구소/대기과학과) ;
  • 김준 (연세대학교 지구환경연구소/대기과학과) ;
  • 김영준 (광주과학기술원 환경공학과) ;
  • 정진상 (한국표준과학원 대기환경표준센터)
  • Received : 2015.01.15
  • Accepted : 2015.02.25
  • Published : 2015.03.31
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Abstract

Recently increased anthropogenic aerosols change the radiative energy balance and affect human life. The management of air quality requires monitoring both the local emissions and transported pollutants. In order to estimate the quantitative contribution of long-range transport from remote sources on aerosol concentrations in Seoul, the airmasses were classified into five types with respect to their pathways. When airmass came from west over strong emission regions in China, high concentrations of $PM_{10}$, $PM_{2.5}$, black carbon (BC), organic carbon (OC), and elemental carbon (EC) were found, even higher than those for the stagnated airmass. High OC concentrations were found when airmass came from north while BC, EC, and $PM_{2.5}$ concentrations were lower than those of the stagnated airmasses. During dust events, the $PM_{2.5}$ and $PM_{10}$ concentrations increased significantly while carbonaceous aerosol concentrations did not increased. The temporal variations of aerosol concentrations in Seoul were affected by the seasonal variations of airmass pathways. The high $PM_{2.5}$ concentrations over $100{\mu}g\;m^{-3}$ appeared most frequently when the airmasses came from west.

Keywords

References

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