Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Spatial and Temporal Variation of Characteristics and Pollution Assessment of Sediment in the Watersheds of Andong-Dam and Imha-Dam, Korea

안동댐과 임하댐 유역에서 퇴적물 특성 및 오염도의 시·공간적 변화

  • Kim, Shin (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Jeong, Hyun-Gi (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Hyoung-Geun (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Ju-Eon (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Park, Su-Jeong (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Yong-Seok (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Yang, Deuk-Seok (Nakdong River Environment Research Center, National Institute of Environmental Research)
  • 김신 (국립환경과학원 낙동강물환경연구소) ;
  • 정현기 (국립환경과학원 낙동강물환경연구소) ;
  • 김형근 (국립환경과학원 낙동강물환경연구소) ;
  • 김주언 (국립환경과학원 낙동강물환경연구소) ;
  • 박수정 (국립환경과학원 낙동강물환경연구소) ;
  • 김용석 (국립환경과학원 낙동강물환경연구소) ;
  • 양득석 (국립환경과학원 낙동강물환경연구소)
  • Received : 2019.07.30
  • Accepted : 2019.11.18
  • Published : 2019.12.31
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Abstract

We investigated the spatial and temporal variation in characteristics and pollution assessment of sediments in the watersheds of Andong-Dam and Imha-Dam, in Korea. Surface sediments were collected from six sites once a year for three years (2015-2017), and analyzed for organic matter (water content, IL, COD, TOC, TN, and TP), grain size, and concentration of trace metals (Al, Li, Zn, Cr, Pb, Cu, Ni, and As). Organic matter generally tended to increase, and was higher in the Andong watershed compare to Imha watershed. Surface sediments were mainly composed of silt. Coarse sediments were mainly distributed at the site adjacent to Andong-Dam, and showed fining after coarsening. Fine sediment were mainly distributed at the site adjacent to Imha-Dam, and were gradually coarsening. Concentration of trace metals generally tended to increase, and was higher for sites in watershed of Andong watershed (PLI > 1) than for sites in Imha watershed (PLI < 1). Trace metals in the study area were considered to be affected by fine sediment (silt), and contamination of trace metals was somewhat affected by Pb, and greatly affected by Zn and As.

Keywords

References

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