Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
권호 표지

Sedimentary Geochemical Characteristics and Environmental Impact of Sediments in Tamjin River and Doam Bay

탐진강 및 도암만 지역 퇴적물의 퇴적지구화학적 특성과 환경영향

  • Hong, Jin-Taek (Dept. of Earth systems and Environmental Science, Chonnam National University) ;
  • Na, Bum-Soo (Dept. of Science Education, Chonnam National University) ;
  • Kim, Joo-Yong (Dept. of Earth systems and Environmental Science, Chonnam National University) ;
  • Koh, Yeong-Koo (Dept. of Science Education, Chonnam National University) ;
  • Youn, Seok-Tai (Dept. of Science Education, Chonnam National University) ;
  • Shin, Sang-Eun (Dept. of Earth systems and Environmental Science, Chonnam National University) ;
  • Kim, Hai-Gyoung (Dept. of Science Education, Gwangju National University of Education) ;
  • Moon, Byoung-Chan (Dept. of Science Education, Gwangju National University of Education) ;
  • Oh, Kang-Ho (Dept. of Science Education, Chonnam National University)
  • 홍진택 (전남대학교 지구환경과학부) ;
  • 나범수 (전남대학교 과학교육학부) ;
  • 김주용 (전남대학교 지구환경과학부) ;
  • 고영구 (전남대학교 과학교육학부) ;
  • 윤석태 (전남대학교 과학교육학부) ;
  • 신상은 (전남대학교 지구환경과학부) ;
  • 김해경 (광주교육대학교 과학교육과) ;
  • 문병찬 (광주교육대학교 과학교육과) ;
  • 오강호 (전남대학교 과학교육학부)
  • Received : 2007.08.22
  • Accepted : 2007.12.02
  • Published : 2007.12.30
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Abstract

To examine the sedimentary geochemical characteristics of sediment in the Tamjin River and Doam bay, the analysis was conducted, using the sample obtained in February 2000, on the grain size and the contents of metallic elements and organic carbon. The factors that influence the geochemical behavior of metallic elements in the surface sediment are grain size, organism, surrounding soil and $CaCO_3$. To find out the pollution level of metallic elements, the enrichment factor (EF) and the index of geoaccumulation ($I_{geo}$) were researched. The majority of metallic elements sustain their values in natural state. The elements such as K, Ba, Zr, etc. appear to be rich in some places. The EF and $I_{geo}$ of P, Cu, Zn, and Pb, which belong to toxic heavy metals, are partly related with man-made pollution. P and Cu have a high EF, Pb has a high $I_{geo}$ and Zn is high in both EF and $I_{geo}$. The low contents of P and Cu are not likely to be related with the pollution of water environment. However, given the development of relative pollution, the research and the management regarding the pollutants are needed. Because Pb, naturally enriched by geological characteristics, has a large influence on water environment along with Zn, the adequate measures against man-made pollution should be worked out.

Keywords

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