영산강 수계 지류,지천의 수질 특성 평가 및 등급화 방안
분야
공학 > 환경공학
저자
정수정 ( Soo Jung Jung ) , 김갑순 ( Kap Soon Kim ) , 서동주 ( Dong Ju Seo ) , 김정현 ( Jung Hyun Kim ) , 임병진 ( Byung Jin Lim )
발행기관
한국물환경학회(구 한국수질보전학회)
간행물정보
한국물환경학회지 2013년, 제29권 제4호, 504~513페이지(총10페이지)
파일형식
07709899.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    Water quality trends for major tributaries (66 sites) in the Yeongsan River basin of Korea were examined for 12 parameters based on water quality data collected every month over a period of 12 months. The complex data matrix was treated with multivariate analysis such as PCA, FA and CA. PCA/FA identified four factors, which are responsible for the structure explaining 78.2% of the total variance. The first factor accounting 27.3% of the total variance was correlated with BOD, TN, TP, and TOC, and weighting values were allowed to these parameters for grade classification. CA rendered a dendrogram, where monitoring sites were grouped into 5 clusters. Cluster 2 corresponds to high pollution from domestic wastewater, wastewater treatment and run-off from livestock farms. For grade classification of tributaries, scores to 10 indexes were calculated considering the weighting values to 3 parameters as BOD, TN and TP which were categorized as the first factor after FA. The highest-polluted group included 10 tributaries such as Gwangjucheon, Jangsucheon, Daejeoncheon, Gamjungcheon, Yeongsancheon. The results indicate that grade classification method suggested in this study is useful in reliable classification of tributaries in the study area.
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