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도심 교차로 노면 지표유출수의 초기수질특성에 관한 연구

Water Quality of the First Flushes in the Surface Runoff at an Intersection

  • 최상용 (연세대학교 토목환경공학과) ;
  • 고광백 (연세대학교 토목환경공학과) ;
  • 이지영 (연세대학교 토목환경공학과) ;
  • 임세호 (연세대학교 토목환경공학과)
  • Choi, Sang-Yong (School of Civil & Environmental Engineering, Yonsei University) ;
  • Ko, Kwang-Baik (School of Civil & Environmental Engineering, Yonsei University) ;
  • Lee, Ji-Young (School of Civil & Environmental Engineering, Yonsei University) ;
  • Lim, Se-Ho (School of Civil & Environmental Engineering, Yonsei University)
  • 발행 : 2006.04.01

초록

Two sites with different average daily traffic volume at an intersection were selected in order to investigate water quality of the first flushes in the surface runoffs. The effects of rainfall intensities and accumulated non-rainy days before rainfall events on the water quality were also delineated. Samples were collected at every 2 min. interval from each first flush from February to May, 2004 for 4 major rainfall events. $COD_{cr}$ or SS concentrations at the site with an average daily traffic volume (ADTV) of 23,000 vehicles were 2-7 times higher than those at the site with an ADTV of 1,400 vehicles. The longer the accumulated non-rainy days were, the higher the concentration of heavy metals were than those of $COD_{cr}$ and SS in the first flushes.

키워드

참고문헌

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피인용 문헌

  1. Reduction of Suspended Solids in First Flush from a Building Rooftop using Various Media vol.39, pp.4, 2017, https://doi.org/10.4491/KSEE.2017.39.4.214