Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Chemical Characteristics of Ambient Aerosol during Asian Dusts and High PM Episodes at Seoul Intensive Monitoring Site in 2009

2009년 서울지역 황사 및 고농도 미세먼지 사례 시 미세먼지의 화학성분 특성

  • Park, Seung-Myung (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research) ;
  • Moon, Kwang-Joo (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research) ;
  • Park, Jong-Sung (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research) ;
  • Kim, Hyun-Jae (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research) ;
  • Ahn, Jun-Yong (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research) ;
  • Kim, Jeong-Soo (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research)
  • 박승명 (국립환경과학원 기후대기연구부 대기환경연구과) ;
  • 문광주 (국립환경과학원 기후대기연구부 대기환경연구과) ;
  • 박종성 (국립환경과학원 기후대기연구부 대기환경연구과) ;
  • 김현재 (국립환경과학원 기후대기연구부 대기환경연구과) ;
  • 안준영 (국립환경과학원 기후대기연구부 대기환경연구과) ;
  • 김정수 (국립환경과학원 기후대기연구부 대기환경연구과)
  • Received : 2012.01.17
  • Accepted : 2012.04.19
  • Published : 2012.06.30
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Abstract

This study aimed to show the chemical characteristics of $PM_{10}$ and $PM_{2.5}$ during Asian dust (AD) events and high PM episodes observed in Seoul. Time-resolved chemical composition of $PM_{10}$ or $PM_{2.5}$ was monitored in 1 hour interval using ambient ion monitor, semi-continuous carbon monitor, and on-line XRF spectrometer at Seoul intensive monitoring site in 2009. Considering that AD events were classified into three different cases according to the source area and pathway, the concentrations of ammonium-sulfate and trace metal components were relatively high when the AD were occurred in Gobi and inner-mongolia and transported across the Bohai bay. In addition, the influence of alkaline dust, which carried from saline land located in the northeastern China, was observed when the AD was originated from Gobi, inner-mongolia, and Manchuria. Except AD events, the high PM episodes observed in Seoul were impacted by various anthropogenic sources such as biomass burning, motor vehicle, oil combustion and road dust.

Keywords

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