Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Measurement of Dry Deposition of Polycyclic Aromatic Hydrocarbons in Jeoniu

전주지역에서 다환방향족 탄화수소의 건식 침적 측정

  • Kim, Hyoung-Seop (Department of Environmental Engineering, Chonbuk National University) ;
  • Kim, Jong-Guk (Department of Environmental Engineering, Chonbuk National University) ;
  • Ghim, Young-Sung (Department of Environmental Science, Hankuk University of Foreign Studies)
  • Published : 2007.04.30
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Abstract

Deposition fluxes of polycyclic aromatic hydrocarbons (PAHs) were measured at the Chonbuk National University located in Jeonju between June and November 2002. Fluxes of gaseous and particulate PAHs were separately obtained using a water surface sampler (WSS) and a dry deposition plate (DDP). Most of PAHs were deposited in the gaseous form since the low molecular weight PAHs dominates in the atmosphere. The deposition velocity of particulate PAHs was higher than that of gaseous PAHs when the molecular weight was low, but substantially decreased as the fine particle fraction increased with molecular weight. The deposition velocity was generally higher at high wind speeds. However, increase in the deposition velocity in unstable atmospheric conditions was also observed for gaseous PAHs of intermediate molecular weight.

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