Journal of Korean Society for Atmospheric Environment

한국대기환경학회 (Korean Society for Atmospheric Environment)
권호 표지

A Study on the Concentration Characteristics of Atmospheric Polycyclic Aromatic Hydrocarbons (PAHs) in Chongju

  • Lee, Hak-Sung (Dept. of Environmental Science, Seowon University) ;
  • Kang, Byung-Wook (Dept. of Environmental Science, Seowon university) ;
  • Kwon, Dong-Hyuk (Dept. of Environmental Industry, Chongju National College of Science and Technology) ;
  • Yeo, Hyun-Gu (Dept. of Environmental Science, Seowon university) ;
  • Chun, Man-Young (Dept. of Environmental Engineering, Hankyong National University)
  • 발행 : 2003.06.01
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초록

Ambient polycyclic aromatic hydrocarbons (PAHs) were measured during the winter and summer of 2002 in Chongju. A filter pack and polyurethane foam (PUF) system was employed to collect simultaneously the particulate and gas phase PAHs. The samples were then analyzed using a gas chromatograph equipped with mass spectrometer detectors (GC/MSD). A total of 29 samples were collected and 11 PAH species were identified. The lower molecular weight PAH compounds (3∼4 rings) dominated the total PAH mass. The higher molecular weight PAH compounds (5∼6 rings) were less abundant. The PAHs were showed to exhibit seasonal variations. The concentrations of all com-pounds were significantly higher in winter than summer. The lower molecular weight PAHs were mostly found in the gas phase whereas the heavier ones were mainly associated with particulate phase. Vehicle emissions are likely to be the primary contributor of PAHs in Chongju. This study also demonstrated that it is necessary to perform simultaneously particulate and gas phase measurements to determine the accurate concentrations of ambient PAHs.

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