Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Review of the Applicability of Water Quality Assessment in the Major Tributaries of the Namhan River using the Real-Time Water Quality Index (RTWQI)

실시간 수질지수(RTWQI)를 활용한 남한강 주요 지류의 수질평가 적용성 검토

  • Cho, Yong-Chul (Han River Environment Research Center, National Institute of Environmental Research) ;
  • Choi, Hyeon-Mi (Han River Environment Research Center, National Institute of Environmental Research) ;
  • Lee, Bomi (Han River Environment Research Center, National Institute of Environmental Research) ;
  • Shin, Dongseok (Han River Environment Research Center, National Institute of Environmental Research) ;
  • Kim, Sang-hun (Han River Environment Research Center, National Institute of Environmental Research) ;
  • Yu, Soonju (Han River Environment Research Center, National Institute of Environmental Research)
  • 조용철 (국립환경과학원 한강물환경연구소) ;
  • 최현미 (국립환경과학원 한강물환경연구소) ;
  • 이보미 (국립환경과학원 한강물환경연구소) ;
  • 신동석 (국립환경과학원 한강물환경연구소) ;
  • 김상훈 (국립환경과학원 한강물환경연구소) ;
  • 유순주 (국립환경과학원 한강물환경연구소)
  • Received : 2021.01.05
  • Accepted : 2021.03.29
  • Published : 2021.04.30
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Abstract

Concern about water quality and pollution was heightened as contaminants flowed into the Namhan River downstream of the Chungju Dam. Thus, this study calculated the Real-Time Water Quality Index (RTWQI) using monthly average water quality monitoring data for major tributaries that require water quality control, which were obtained between 2010 and 2019. To review the applicability of the RTWQI for water quality assessment in the major tributaries of the Namhan River, it was compared with the living environment standard river. The calculated RTWQI result indicated that Bokhacheon, with 59 points, was in the "fair" grade, and this stream was identified as a tributary that preferentially requires water quality improvement as it showed a decreasing (-) tendency of RTWQI. A comparison between RTWQI and the living environment standard of T-P showed that the categories of "completely coincident" and "different by one grade" accounted for 45% of the total, and the water quality of major tributaries was assessed as low. Therefore, the RTWQI, which applies comprehensive water quality parameters and has higher reliability than assessing a single water quality parameter, was determined to be efficient for water quality assessment of the major tributaries of the Namhan River.

Keywords

Acknowledgement

본 논문은 환경부의 재원으로 국립환경과학원 한강물환경연구소의 지원을 받아 수행 하였습니다(NIER-2021-01-01-134).

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