환경영향평가 (Journal of Environmental Impact Assessment)

한국환경영향평가학회 (Korean Society of Environmental Impact Assessment)
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통계분석을 이용한 영산강·섬진강수계 주요 유입지천의 수질 특성

Water Quality Characteristics of the Major Tributaries in Yeongsan and Sumjin River Basin using Statistical Analysis

  • 박진환 (국립환경과학원 영산강물환경연구소) ;
  • 정재운 (국립환경과학원 영산강물환경연구소) ;
  • 김대영 (국립환경과학원 영산강물환경연구소) ;
  • 김갑순 (국립환경과학원 영산강물환경연구소) ;
  • 한성욱 (국립환경과학원 영산강물환경연구소) ;
  • 김현욱 (서울시립대학교 환경공학부) ;
  • 임병진 (국립환경과학원 영산강물환경연구소)
  • Park, Jinhwan (Yeongsan River Environment Research Center, National Institute of Environmental Research) ;
  • Jung, Jaewoon (Yeongsan River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Daeyoung (Yeongsan River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Kapsoon (Yeongsan River Environment Research Center, National Institute of Environmental Research) ;
  • Han, Sungwook (Yeongsan River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Hyunook (Division of Environmental Engineering, University of Seoul) ;
  • Lim, Byungjin (Yeongsan River Environment Research Center, National Institute of Environmental Research)
  • 투고 : 2013.02.06
  • 심사 : 2013.04.04
  • 발행 : 2013.04.30
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초록

In this study, we report the water quality characteristics of pollutants for 4 major tributaries in the Yeongsan and Sumjin river basins using statistical analysis, such as regression equation and factor analysis. The flow rate and water qualtiy data collected from 4 sampling sites(Hwangryoung A, Jiseok A, Chooryeong A, Osu A) in the Yeonsan and Sumjin river basin during the past 3 years were analyzed for 11 parameters(flow rate, dissolved oxgen, pH, water temperature, electric conductivity, biochemical oxygen demand, chemical oxygen deman, total organic carbon, total nitorgen, total phosphorus, suspended solid). The results showed that the concentrations of BOD, COD, TOC, T-N, T-P in Hwangryoung A(HW) and Jiseok A(JS) of the Yeongsan river basin were decreased as the flow rate was increased. This means that rather than nonpoint soources, point sources affect water quality. In the cases of Chooryeong A(CR) and Osu A(OS) in the Sumjin river basin, howerever, nonpoint sources than point sources are an important factor that affects the water quality. Also, the factor analysis technique was employed to analyze principal component influencing on water quality. The results revealed that the first principal component in HW was correlated with EC, DO, T-N, water temperature. This "nitrogen influx according to seasonal pattern" factor may be interpreted. In JS, the first principal component was correlated with BOD, COD, TOC and is likely to represent "organic matter" processes. In CR and OS, BOD, COD, TOC, SS and T-P were significantly correlated and is considered as representing "Organic matter and adsorption of phosphorus on sediments influx". This study is expected to contribute to the effective pollution control/management of the surfac waters in the study sites.

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  6. 시계열 부하 곡선을 이용한 수체손상 평가 및 다변량 분석 -지석천 유역을 대상으로- vol.33, pp.6, 2013, https://doi.org/10.15681/kswe.2017.33.6.650
  7. 유량-오염부하량 관계식과 요인분석을 이용한 경안천의 수질특성 평가 vol.4, pp.4, 2013, https://doi.org/10.17820/eri.2017.4.4.226
  8. 임진강 유역 오염물질 총량관리를 위한 유량-수질 자료의 통계분석 vol.27, pp.4, 2013, https://doi.org/10.14249/eia.2018.27.4.353