한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제29권5호
  • /
  • Pages.630-640
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  • 2013
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

수질오염총량관리 대상물질 선정을 위한 하천수질 평가

Evaluation of Stream Water Quality to Select Target Indicators for the Management of Total Maximum Daily Loads

  • 박준대 (국립환경과학원 물환경연구부 수질총량연구과) ;
  • 박재홍 (국립환경과학원 물환경연구부 수질총량연구과) ;
  • 오승영 (국립환경과학원 물환경연구부 수질총량연구과) ;
  • 이재관 (국립환경과학원 한강물환경연구소)
  • Park, Jun Dae (Water Pollution Load Management Research Division,Water Environment Research Department, National Institute of Environmental Research) ;
  • Park, Jae Hong (Water Pollution Load Management Research Division,Water Environment Research Department, National Institute of Environmental Research) ;
  • Oh, Seung Young (Water Pollution Load Management Research Division,Water Environment Research Department, National Institute of Environmental Research) ;
  • Lee, Jae Kwan (Han River Environmental Research Center, National Institute of Environmental Research)
  • 발행 : 2013.09.30
⟨ 이전 논문 다음 논문 ⟩

초록

It is one of the most critical steps identifying impaired waterbodies exactly in the selection of target water quality indicators for the management of Total Maximum Daily Loads (TMDLs). Excess ratio and excess level were applied and analyzed by the stream zone basis in order to evaluate water impairment for Nakdong, Geum, Youngsan and Seomjin rivers. Each river basin was divided into stream zones in the light of its watershed and waterbody characteristics. Selected water quality parameters discussed in this study were pH, DO, BOD, COD, SS, T-P, T-Coli and F-Coli. The excess ratios of the water quality parameters were used to discriminate water bodies that did not meet water quality standards. The excess levels were used to classify the degradation of water quality. The excess ratios and the excess levels to the water quality criteria of the medium influence areas were used for each stream zone. The results indicate that the excess ratios and the excess levels are varied on the stream zone in each river basin. Three parameters, pH, DO and SS, met water quality standards in all stream zones. The other five parameters indicated very high excess ratios in most waterbodies, and especially T-P and T-Coli revealed to be very high excess levels in some waterbodies. These parameters could be considered as major target indicators for the management of TMDLs.

키워드

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