한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제36권2호
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  • Pages.116-124
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  • 2020
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
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한강수계 굴포천과 안양천에서 안정동위원소와 수질 특성을 이용한 입자성 물질의 기원 추적

Source Tracking of Particular Matters using Stable Isotope Analysis and Water Quality Characteristics in Gulpo and Anyang Stream, Han-River

  • 홍정기 (국립환경과학원 한강물환경연구소) ;
  • 임종권 (국립환경과학원 한강물환경연구소) ;
  • 손주연 (국립환경과학원 한강물환경연구소) ;
  • 노혜란 (국립환경과학원 한강물환경연구소) ;
  • 유순주 (국립환경과학원 한강물환경연구소) ;
  • 이보미 (국립환경과학원 한강물환경연구소)
  • Hong, Jung-Ki (Han-River Environment Research Center, National Institute of Environmental Research) ;
  • Im, Jong Kwon (Han-River Environment Research Center, National Institute of Environmental Research) ;
  • Son, Ju Yeon (Han-River Environment Research Center, National Institute of Environmental Research) ;
  • Noh, Hye-Ran (Han-River Environment Research Center, National Institute of Environmental Research) ;
  • Yu, Soon-Ju (Han-River Environment Research Center, National Institute of Environmental Research) ;
  • Lee, Bo-Mi (Han-River Environment Research Center, National Institute of Environmental Research)
  • 투고 : 2020.01.20
  • 심사 : 2020.03.18
  • 발행 : 2020.03.30
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초록

This study aims to identify the characteristics of organic matter and pollutant sources using water quality and stable isotope ratios (δ15N, δ13C) of the two inflow tributaries (Gulpo (GP) and Anyang (AY) streams). Water samples were analyzed in June and September 2018, and the results showed that the concentrations of nutrients, such as TN and NO3-N, were increased at GP4, which is located at the downstream of sewage treatment facilities(STFs). TOC and TN ratios showed a strong positive correlation (R2 = 0.77, p<0.01) at all points except for GP4. The results of GP's stable isotope ratio analysis do not appear to be a constant cluster compared to AY because GPs with large amounts of pollutants from the industry (metal processing companies, etc.) have less tributary, shorter waterway and significantly different external sources. This could be attributed to different sources of external inflow despite its smaller number of tributaries and shorter waterways than AY. In the first half of the year, the δ155N of GP4 was affected by discharge of STFs, while AY3 seemed to have an influence of tributary than the discharge of STFs. Consequently, using water quality, stable isotope ratio and C/N, the sources of contamination in two streams with different contaminants were identified and origin was estimated.

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참고문헌

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