Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Distribution and Pollution of Heavy metals in Surface sediments from Nakdong River

낙동강 수계 표층 퇴적물의 중금속 분포와 오염도

  • Kim, Shin (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Jueon (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Lee, Kwonchul (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Lee, Kyuyeol (Copyrights Ministry of Environment, All Rights Reserved) ;
  • Jeon, Hyelyn (Southwest Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Yu, Jaejung (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Lee, Injung (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Ahn, Jungmin (Nakdong River Environment Research Center, National Institute of Environmental Research)
  • 김신 (국립환경과학원 낙동강물환경 연구소) ;
  • 김주언 (국립환경과학원 낙동강물환경 연구소) ;
  • 이권철 (국립환경과학원 낙동강물환경 연구소) ;
  • 이규열 (환경부 낙동강유역환경청) ;
  • 전혜린 (국립수산과학원 남서해수산 연구소) ;
  • 유재정 (국립환경과학원 낙동강물환경 연구소) ;
  • 이인정 (국립환경과학원 낙동강물환경 연구소) ;
  • 안정민 (국립환경과학원 낙동강물환경 연구소)
  • Received : 2015.02.04
  • Accepted : 2015.07.21
  • Published : 2015.08.31
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Abstract

In order to certificate the distribution and pollution of heavy metal of surface sediments in Nakdong River were collected and analyzed for grain size, water content, ignition loss and heavy metal content. Surface sediments mainly composed of sand(avg. 94.6%) and water content and ignition loss were 20.46%, 1.53% on average. Grain size were relatively fine and organic matter content were relatively high in the Hoichun and Sunakdonggang. Most of heavy metal content(Zn > Cr > Pb > Ni > Cu > Hg) in the Deokcheongang and Sunakdonggang were higher than the other streams. The Igeo were non polluted(less than 0) in all streams and the EF were relatively high in the small stream and PLI were non polluted(less than 1). In addition, organic matter, heavy metal content and pollution were highly correlation with grain size. Surface sediments in study area, heavy metal pollution of the Sunakdonggang were relatively high compared to the other stream but these results were not serious pollution that exceed the sediment pollution evaluation standard of river and lake in Korea and pollution levels adversely affected the majority of benthos were not.

Keywords

References

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