Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Application of the Load Duration Curve (LDC) to Evaluate the Achievement Rate of Target Water Quality in the Nakdong River Unit Watersheds

부하지속곡선(LDC ; Load Duration Curve)을 활용한 낙동강수계 오염총량 단위유역 목표수질 평가방법 적용 방안

  • Jung, Kang-Young (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Hong Tae (Watershed Pollution Load Management Research Division, National Institute of Environmental Research) ;
  • Kim, Sang Soo (Watershed Pollution Load Management Research Division, National Institute of Environmental Research) ;
  • Kim, Shin (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Shin, Dong Seok (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Gyeong Hoon (Nakdong River Environment Research Center, National Institute of Environmental Research)
  • 정강영 (국립환경과학원 낙동강물환경연구소) ;
  • 김홍태 (국립환경과학원 유역총량연구과) ;
  • 김상수 (국립환경과학원 유역총량연구과) ;
  • 김신 (국립환경과학원 낙동강물환경연구소) ;
  • 신동석 (국립환경과학원 낙동강물환경연구소) ;
  • 김경훈 (국립환경과학원 낙동강물환경연구소)
  • Received : 2017.01.10
  • Accepted : 2017.03.15
  • Published : 2017.04.30
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Abstract

In recent years, the United States has used the Load Duration Curve (LDC) method to identify water pollution problems, considering the size of the pollutant load in the entire stream flow condition to effectively evaluate Total Maximum Daily Loads (TMDLs). A study on the improvement of the target water quality evaluation method was carried out by comparing evaluations of two consecutive years of water quality and LDC data for 41 unit watersheds (14 main streams and 27 tributaries). As a result, the achievement rate of the target water quality evaluation method, according to current regulations, was 68-93%, and that by the LDC method was 82-93%. Evaluating the target water quality using the LDC method results in a reduction in the administrative burden and the total amount of planning as compared to the current method.

Keywords

References

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