Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Research on the Applicability of the Load Duration Curve to Evaluate the Achievement of Target Water Quality in the Unit Watershed for a TMDL

수질오염총량 단위유역의 목표수질 달성여부 평가를 위한 부하지속곡선 적용성 연구

  • Hwang, Ha-Sun (Water Pollution Cap System Division, National Institute of Environmental Research) ;
  • Park, Bae-Kyung (Water Pollution Cap System Division, National Institute of Environmental Research) ;
  • Kim, Yong-Seok (Water Pollution Cap System Division, National Institute of Environmental Research) ;
  • Park, Ki-Jung (Water Pollution Cap System Division, National Institute of Environmental Research) ;
  • Cheon, SeUk (Water Pollution Cap System Division, National Institute of Environmental Research) ;
  • Lee, Sung-Jun (Water Pollution Cap System Division, National Institute of Environmental Research)
  • 황하선 (국립환경과학원 수질총량연구과) ;
  • 박배경 (국립환경과학원 수질총량연구과) ;
  • 김용석 (국립환경과학원 수질총량연구과) ;
  • 박기중 (국립환경과학원 수질총량연구과) ;
  • 천세억 (국립환경과학원 수질총량연구과) ;
  • 이성준 (국립환경과학원 수질총량연구과)
  • Received : 2011.06.21
  • Accepted : 2011.11.07
  • Published : 2011.11.30
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Abstract

The purpose of this study was evaluated on achievement of the Target water quality (TWQ) with Load Duration Curve (LDC) as well as materials collected through the implementation of Total Maximum Daily Load (TMDL), targeting 41 unit watersheds in the Nakdong River Basin in korea, and examines the adequacy of the LDC method to evaluate the TWQ by comparing methods through current regulations. It aims to provide basic materials for TMDL development in Korea. This determination resulted from the fact that the measured data placed on the LDC mean that they are beyond TWQ in a certain condition of water flow when actually measured load values were displayed in a form of LDC. In addition to water quality surveys, it is considered that information on the level of damage in a water body by water flow grade can be utilized as a basic material to identify compliance with the total admitted quantity, and establish rational plans to improve water quality. This information helps in the identification of the degree of damage in water quality according to water flow.

Keywords

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