Microbiological water quality of the Mfoundi River watershed at Yaoundé, Cameroon, as inferred from indicator bacteria of fecal contamination

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DOIResolve DOI: http://doi.org/10.1007/s10661-005-9172-7
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TypeArticle
Journal titleEnvironmental Monitoring and Assessment
Volume122
Issue1-3
Pages171183; # of pages: 13
SubjectENV; coliforms; fecal contamination; indicator bacteria; river
AbstractUsing the membrane filtration technique to count total coliform (TC), fecal coliform (FC) and fecal streptococci (FS), the microbiological water quality of the Mfoundi River and four of its representative tributaries at Yaound´e, Cameroon, was assessed for human use and contact. Sampling was conducted so as to examine the potential origin of fecal contamination and how rainfall affects the measured concentrations of indicators organisms. Our results revealed that waters were not safe for human use or primary contact according to the standards for water quality established by theWord Health Organization (WHO). Indeed, these waters exhibited high concentrations of TC (Mean ± SD = 5.6 × 10⁸ ± 2.5 × 10⁶ CFU/100 ml), FC (Mean ± SD = 6.8 × 10⁵ ± 2.4 × 10³ CFU/100 ml) and FS (Mean ± SD = 7.3 × 10⁵ ± 2.1 × 10³ CFU/100 ml) that varied with the sampling sites and points. FC/FS ratio suggested that this contamination was more from warm-blooded animals than humans and correlation analysis points to the role of rainfall as a contributing factor, which enhanced the bacterial numbers detected. We conclude that there is a great potential risk of infection for users of waters from the Mfoundi River and its tributaries at Yaoundé.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Biotechnology Research Institute
Peer reviewedNo
NRC number49067
NPARC number12742479
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Record identifier6ad25ba2-b245-475e-be5f-971c3373ac5f
Record created2009-10-26
Record modified2016-05-09
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