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Validity of Fecal Pollution Source Tracking using FC/FS Ratio  

Park, Ji-Eun (Department of Biological Science, Daegu University)
Lee, Young-Ok (Department of Biological Science, Daegu University)
Publication Information
Journal of Korean Society on Water Environment / v.26, no.1, 2010 , pp. 28-34 More about this Journal
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
Fecal coliforms (FC)/fecal streptococci (FS); Fecal pollution origin; Seasonal variation; Surface water;
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Times Cited By KSCI : 3  (Citation Analysis)
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