Composition of Organic Compounds in the Ambient PM10 of the Anmyon Island

안면도 미세먼지 내 유기성분들의 분포 특성

  • Lee, Ji Yi (Department of Environmental Engineering, Chosun University) ;
  • Hwang, Eun Jin (Department of Environmental Engineering, Chosun University) ;
  • Lim, Hyung Bae (Department of Environmental Engineering, Chosun University) ;
  • Kim, Yu Won (Global Atmosphere Watch station, Korea Meteorological Administration) ;
  • Kim, Eun Sil (Global Atmosphere Watch station, Korea Meteorological Administration) ;
  • Kim, Yong Pyo (Department of Environmental Science and Engineering, Ewha Womans University)
  • 이지이 (조선대학교 환경공학과) ;
  • 황은진 (조선대학교 환경공학과) ;
  • 임형배 (조선대학교 환경공학과) ;
  • 김유원 (기상청 기후변화감시센터) ;
  • 김은실 (기상청 기후변화감시센터) ;
  • 김용표 (이화여자대학교 환경공학과)
  • Published : 2013.09.30


To understand the characteristics of organic aerosol(OA) at the background atmosphere of Korea, an observation of atmospheric PM10 was conducted at a Global Atmospheric Watch(GAW) station operated by the Korean Meteorological Administration at Anmyon Island during 2010. Various organic compounds were analyzed from 26 samples by using a gas chromatography-mass spectrometer. Water soluble organic carbon(WSOC) was also analyzed by using a total organic carbon(TOC) analyzer. Among 6 classes with 68 target compounds detected, the classes of n-alkanoic and alkenoic acids ($326.67{\pm}75.40ngm^{-3}$) and dicarboxylic acids ($323.74{\pm}361.89ngm^{-3}$) were found to be major compound classes in the atmosphere of Anmyon Island. Compared to the previous results reported for 2005 spring samples at Gosan site, the concentrations of organic compounds at Anmyon Island were 3-10 times higher than Gosan site due to the difference of location and sampling period. The concentrations of organic compounds were varied with the atmospheric conditions. Significant increase of the concentrations of dicarboxylic and carboxylic acids in the smog episode indicated that secondary oxidation of organic compounds was major factor to increase OA concentration during smog episode in the Anmyon Island. It was found that the compositions of the OA measured at Anmyon Island were dependent on the air parcel trajectories.


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