Validity of Fecal Pollution Source Tracking using FC/FS Ratio

FC/FS 비율에 의한 분변오염원의 출처파악의 유효성

  • Park, Ji-Eun (Department of Biological Science, Daegu University) ;
  • Lee, Young-Ok (Department of Biological Science, Daegu University)
  • 박지은 (대구대학교 생명과학과) ;
  • 이영옥 (대구대학교 생명과학과)
  • Received : 2009.07.13
  • Accepted : 2009.10.28
  • Published : 2010.01.30

Abstract

This study was conducted to assess the validity of fecal coliforms to fecal streptococci ratio (FC/FS) for distinguishing the human from animal origin of fecal pollution in surface water. FC/FS ratio determined in effluent from municipal wastewater and human feces treatment plant (WWTP) and in downstream close to discharge of human feces was above 4 which indicates human origin. However FC/FS ratios determined seasonally in other water zones of the Nakdong River, even in the same sampling site, varied differently (above 4 or less than 0.7) due to different survival time of FC and FS and other environmental factors such as rainfall in watershed. Compared to other season, FC/FS ratios in winter were much lower regardless of the origin. It is concluded that the FC/FS ratio determined in surface water is not always valid for determining the origin of fecal pollution.

Keywords

References

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