Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Characterization of Volatile Organic Compounds(VOCs) Concentrations in Jinju

진주시 대기중 휘발성 유기화합물의 농도특성 기초조사

  • Park, Jeong-Ho (Department of Environmental Engineering, Gyeongnam National University of Science and Technology) ;
  • Park, Hyung-Gun (Department of Environmental Engineering, Gyeongnam National University of Science and Technology) ;
  • Suh, Jeong-Min (Department of Bio-Environmental Energy, Pusan National University)
  • 박정호 (경남과학기술대학교 환경공학과) ;
  • 박현건 (경남과학기술대학교 환경공학과) ;
  • 서정민 (부산대학교 바이오환경에너지학과)
  • Received : 2012.10.12
  • Accepted : 2013.01.18
  • Published : 2013.01.31
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Abstract

In order to study the seasonal patterns and possible origins of air concentrations of volatile organic compounds(VOC), measurements were taken with GC-MS at 3 sampling sites in Jinju for 12 months from Mar. 2010 to Feb. 2011. Atmospheric VOC are sampled on tubes containing solid adsorbents(Tenax TA) with a time resolution of 2hrs. Composition and concentration of VOC are analysed with a GC system equipped with thermal desorption apparatus(ATD). The most abundant compound appeared to be Toluene, Ethylbenzene and m,p-Xylene. The mean concentrations of Benzene were 0.20 ppb at GN site, 0.18 ppb at DA site, and 0.25 ppb at SP site, respectively. VOC concentration showed a strong seasonal variation, with higher concentrations during the spring and lower concentrations during the summer. The results showed that monthly fluctuations in measured VOC concentrations depended on variations in the strength of sources, as well as on photochemical activity and meteorological conditions. In Jinju, the total VOC emissions for 2009 were estimated to be 4,407 ton/year by Clean Air Policy Support System(CAPSS). It is shown that solvent use 57.5%(2,534 ton/yr), waste treatment and disposal 23.3%(1,025 ton/yr), and mobil source-road traffic 12.2%(537 ton/yr) are the most significant anthropogenic source.

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