Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Characteristics of Trend and Pattern for Water Quality Monitoring Networks Data using Seasonal-kendall, SOM and RDA on the Mulgeum in the Nakdong River

경향성 및 패턴 분석을 이용한 낙동강 물금지역의 수질 특성

  • Ahn, Jung-Min (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Lee, In-Jung (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Jung, Kang-Young (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Jueon (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Lee, Kwonchul (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Cheon, Seuk (Nakdong River Environment Research Center, National Institute of Environmental Research) ;
  • Lyu, Siwan (Department of Civil Engineering Changwon National University)
  • 안정민 (국립환경과학원 낙동강물환경연구소) ;
  • 이인정 (국립환경과학원 낙동강물환경연구소) ;
  • 정강영 (국립환경과학원 낙동강물환경연구소) ;
  • 김주언 (국립환경과학원 낙동강물환경연구소) ;
  • 이권철 (국립환경과학원 낙동강물환경연구소) ;
  • 천세억 (국립환경과학원 낙동강물환경연구소) ;
  • 류시완 (창원대학교 토목공학과)
  • Received : 2015.08.13
  • Accepted : 2016.01.04
  • Published : 2016.03.31
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Abstract

Ministry of Environment has been operating water quality monitoring network in order to obtain the basic data for the water environment policies and comprehensively understand the water quality status of public water bodies such as rivers and lakes. The observed water quality data is very important to analyze by applying statistical methods because there are seasonal fluctuations. Typically, monthly water quality data has to analyze that the transition comprise a periodicity since the change has the periodicity according to the change of seasons. In this study, trends, SOM and RDA analysis were performed at the Mulgeum station using water quality data for temperature, BOD, COD, pH, SS, T-N, T-P, Chl-a and Colon-bacterium observed from 1989 to 2013 in the Nakdong River. As a result of trends, SOM and RDA, the Mulgeum station was found that the water quality is improved, but caution is required in order to ensure safe water supply because concentrations in water quality were higher in the early spring(1~3 month) the most.

Keywords

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