Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Chemical Characteristics and Source Apportionment ofPM2.5 in Seoul Metropolitan Area in 2010

2010년도 서울시 대기 중 PM2.5의 성분특성 및 발생원 추정에 관한 연구

  • Moon, Kwang-Joo (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research) ;
  • Park, Seung-Myung (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) ;
  • Song, In-Ho (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research) ;
  • Jang, Sung-Ki (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research) ;
  • Kim, Jong-Chun (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research) ;
  • Lee, Seok-Jo (Department of Air Quality Research, Climate and Air Quality Research Division, National Institute of Environmental Research)
  • 문광주 (국립환경연구원 기후대기연구부 대기환경연구과) ;
  • 박승명 (국립환경연구원 기후대기연구부 대기환경연구과) ;
  • 박종성 (국립환경연구원 기후대기연구부 대기환경연구과) ;
  • 송인호 (국립환경연구원 기후대기연구부 대기환경연구과) ;
  • 장성기 (국립환경연구원 기후대기연구부 대기환경연구과) ;
  • 김종춘 (국립환경연구원 기후대기연구부 대기환경연구과) ;
  • 이석조 (국립환경연구원 기후대기연구부 대기환경연구과)
  • Received : 2011.10.25
  • Accepted : 2011.11.29
  • Published : 2011.12.31
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Abstract

This study is aimed to estimate the $PM_{2.5}$ source apportionment at Seoul intensive monitoring site located in Seoul metropolitan area. Time-resolved chemical compositions of $PM_{2.5}$ are measured in real time using ambient ion monitor, semi-continuous carbon monitor, and on-line XRF at Seoul intensive monitoring site in 2010. The mass concentration of $PM_{2.5}$ was simultaneously monitored with eight ionic species (${SO_4}^{2-}$, $NO_3{^-}$, $Cl^-$, $NH_4{^+}$, $Na^+$, $K^+$, $Mg^{2+}$, $Ca^{2+}$), two carbonaceous species (OC and EC), and fourteen elements (Si, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, As, Se, Pb) in 1-hr interval. The data sets were then analyzed using EPA PMF version 3 to identify sources and contributions to $PM_{2.5}$ mass. EPA PMF modeling identified eight PM2.5 sources, including soil dust, secondary sulfate, secondary nitrate, motor vehicle, coal combustion, oil combustion, biomass burning, and municipal incineration. This study found that the average $PM_{2.5}$ mass was apportioned to anthropogenic sources such as motor vehicle, fuel combustion, and biomass burning (61%) and secondary aerosols, including sulfate and nitrate (38%).

Keywords

References

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