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오염총량관리를 위한 소하천 모니터링 자료의 특성 분석

Analysis of Monitoring Characteristics of Small Stream for TMDL

  • 하돈우 (국립환경과학원 영산강물환경연구소) ;
  • 박승호 (국립환경과학원 영산강물환경연구소) ;
  • 주성민 (국립환경과학원 영산강물환경연구소) ;
  • 이기순 (국립환경과학원 영산강물환경연구소) ;
  • 백종훈 (국립환경과학원 영산강물환경연구소) ;
  • 정강영 (국립환경과학원 영산강물환경연구소) ;
  • 이영재 (국립환경과학원 영산강물환경연구소) ;
  • 김경현 (국립환경과학원 영산강물환경연구소) ;
  • 김영석 (국립환경과학원 영산강물환경연구소)
  • Ha, Don-Woo (Dept. of Yeongsanriver Environment Research Laboratory, National Institute of Environmental Research) ;
  • Park, Seung-Ho (Dept. of Yeongsanriver Environment Research Laboratory, National Institute of Environmental Research) ;
  • Joo, Sungmin (Dept. of Yeongsanriver Environment Research Laboratory, National Institute of Environmental Research) ;
  • Lee, Gi-Soon (Dept. of Yeongsanriver Environment Research Laboratory, National Institute of Environmental Research) ;
  • Baek, Jong-Hun (Dept. of Yeongsanriver Environment Research Laboratory, National Institute of Environmental Research) ;
  • Jung, Kang-Young (Dept. of Yeongsanriver Environment Research Laboratory, National Institute of Environmental Research) ;
  • Lee, Youngjea (Dept. of Yeongsanriver Environment Research Laboratory, National Institute of Environmental Research) ;
  • Kim, Kyunghyun (Dept. of Yeongsanriver Environment Research Laboratory, National Institute of Environmental Research) ;
  • Kim, Young-Suk (Dept. of Yeongsanriver Environment Research Laboratory, National Institute of Environmental Research)
  • 투고 : 2018.09.18
  • 심사 : 2018.12.21
  • 발행 : 2018.12.31

초록

영산강 수계의 오염총량관리 이행사항 평가 및 원활한 제도 운영을 위해 단위유역 내 행정구역경계에 해당되는 소하천에 대해 지속적으로 시행하는 있는 모니터링 자료를 토대로 특성을 분석하였다. 모니터링 해당기간(2011~2016년) 내 모니터링은 1분기에 비해 2분기 측정 횟수가 많아 목표수질 설정 및 평가 시 측정횟수 등을 고려해야 하며, 일반적 하천처럼 상류지역 보다 하류지역의 하천이 수질이 악화되어 있는 것으로 분석되었다. 더불어 모니터링 지점의 오염부하량을 산정한 결과 풍영정천, 삼포천 등에서 수질이 매우 악화되어 있는 것으로 분석되었다. 이는 유량 및 BOD, T-P의 농도가 높아 영산강 본류의 수질에 미치는 영향이 크므로 수질개선을 위해서는 각종 오염원의 관리가 필요한 것으로 분석되었다. 또한, 목표수질 대상항목인 BOD 및 T-P의 측정항목간의 연관성을 평가하기 위해 지점별로 상관분석을 한 결과 BOD는 COD, TOC와 연관성이 높게 나타나 유기물과 관련된 오염원의 배출에 의한 영향을 받는 것으로, T-P는 SS, COD와의 연관성이 높게 나타나 강우에 의한 유입의 영향을 받는 것으로 나타났다. 본 연구에서의 장기간 모니터링을 수행하여 축적된 수질자료를 분석하고 특성을 파악함으로써 해당수계의 수질관리에 효율적이고 과학적인 방안을 설계함에 있어 기초자료 및 방향을 제시할 수 있을 것으로 판단된다.

In order to continuous watershed management and improve water quality at Yeong-san river system, we analyzed and evaluated data on the monitoring of small stream in city and county boundaries within the watershed. In-period monitoring is estimated to be more frequent in the second quarter than the first quarter, so it should be considered when evaluating the target water quality by setting the target water quality. A small stream in the Yeong-san river system has higher concentration in the downstream area than the upstream area. As a result of calculating the load of the measuring point, Y.b B3(Pungyeongjeongcheon) and Y.b E1(Sampocheon) were high. The result of correlation analysis by monitoring point in order to evaluate the correlation between BOD and T-P items, BOD was highly correlated with COD and TOC, and was affected by emission of pollutants related to organic matter. T-P was highly correlated with SS and COD, and was affected by rainfall. This study will provide basic data and direction for designing efficient and scientific method for water quality management by analyzing accumulated water quality data by conducting long-term monitoring.

키워드

과제정보

연구 과제 주관 기관 : 영산강.섬진강 수계관리위원회

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