Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Evaluation of the Effect of the Discharged Water from Bong Stream after Rainfall Events on the Bacteriological Water Quality in Gangjinman, Korea

강우 발생에 따른 남해군 봉천 방출수가 강진만 해역의 세균학적 수질에 미치는 영향 평가

  • 박큰바위 (국립수산과학원 남서해수산연구소) ;
  • 조미라 (국립수산과학원 남서해수산연구소) ;
  • 이희정 (국립수산과학원 남동해수산연구소) ;
  • 권지영 (국립수산과학원 식품안전과) ;
  • 손광태 (국립수산과학원 식품안전과) ;
  • 이태식 (국립수산과학원 남서해수산연구소)
  • Received : 2011.08.12
  • Accepted : 2011.12.08
  • Published : 2011.12.30
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Abstract

We investigated the effect of the discharged water from Bong Stream, which is located in the drainage area of Gangjinman area on the bacteriological water quality in the coastal area after rainfall events. Following 12.5 mm of rainfall, water discharged from Bong Stream had a very limited effect on bacteriological water quality in adjacent area and the affected area did not extend to the designated area. On the other hand, after 23 mm rainfall, the density of fecal coliform at stations located in the designated area was higher than at stations located in the adjacent area. The degree of bacteriological contamination at the surveyed stations in the coastal area after rainfall events did not show a relationship with distance from the shoreline. These results indicate that the direction of spread and the range of contaminants from the drainage area were affected by tides at the time of the survey. Therefore, a detailed survey of the effects of tides on the diffusion characteristics of the contaminants from Bong Stream is needed to establish a proper management plan for the surveyed area.

Keywords

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