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Extent of Pollution of Sediments at Weirs in the Upper Region of the Miho River

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2024, 33(6), pp.375-387
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering
  • Received : November 3, 2024
  • Accepted : December 18, 2024
  • Published : December 31, 2024

Kyungmi Kim 1 Hee-Jin Moon 1 Ji-Min Lee 2

1충북보건환경연구원
2충북대학교

Accredited

ABSTRACT

The contamination of sediments formed by weirs located in the upper region of the Miho River, a major tributary of the Geum River, was analyzed. Sediments were collected from 10 weirs in Mar., Oct., and Dec., and the following parameters were analyzed: ignition loss, sediment chemical oxygen demand, total nitrogen (T-N), total phosphorus (T-P), soluble reactive phosphorus, and metal concentrations (As, Cd, Cu, Pb, Ni, Zn, Cr). The organic contamination level of the sediments was not high; however, the concentrations of T-N and T-P were elevated. Notably, among the 30 samples, 20 were classified as below Class III according to the “Criteria for Contamination Assessment of River and Lake Sediments.” Among the metals, cadmium (Cd) exhibited the highest level of contamination.

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