Speciation of heavy metals in water from the Uganda side of Lake Victoria

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dc.contributor.authorMBABAZI, JOLOCAM
dc.contributor.authorTWINOMUHWEZI, H.
dc.contributor.authorWASSWA, J.
dc.contributor.authorNTALE, M.
dc.contributor.authorMULONGO, G.
dc.contributor.authorKWETEGYEKA, J.
dc.contributor.authorSCHR DER, K.H.
dc.date.accessioned2023-08-09T09:43:57Z
dc.date.available2023-08-09T09:43:57Z
dc.date.issued2010-02
dc.description.abstractDifferent forms of copper Cu, zinc Zn, lead Pb and cadmium Cd in water from the Uganda side of Lake Victoria (25°C, pH 6.75–7.18), the second largest inland freshwater lake in the world, have been studied using ion-exchange, dialysis and atomic absorption spectrophotometry. The results indicate that heavy metals Cu, Zn, Pb and Cd are present mainly in the cationic form (80–83%). Small quantities of anionic (13–22%), non-ionic, dialyzable (4–8%), and non-ionic, non-dialyzable (< 1.3–4.4%) forms were also detected for all metals except Cd. The corresponding concentrations lay in the ranges: cationic, 0.06–0.99; anionic, < 0.001–0.25; non-ionic, dialyzable, < 0.001–0.08; non-ionic, non-dialyzable, < 0.001–0.06 µg ml−1 . The existence of the metals in non-ionic and nondialyzable forms is attributable to metal associations with high relative molecular mass (RMM) organic matters.en_US
dc.description.sponsorshipNorwegian Government, through NUFU and Makerere University.en_US
dc.identifier.issn0020-7233
dc.identifier.issn1029-0400
dc.identifier.urihttps://hdl.handle.net/20.500.14270/196
dc.publisherTailor and Francisen_US
dc.relation.ispartofseriesInternational Journal of Environmental Studies,;Vol. 67, No. 1,
dc.subjectHeavy metalsen_US
dc.subjectSpeciation;en_US
dc.subjectDialysis;en_US
dc.subjectIon-exchange;en_US
dc.subjectLake Victoriaen_US
dc.subjectAtomic absorption spectrophotometryen_US
dc.titleSpeciation of heavy metals in water from the Uganda side of Lake Victoriaen_US
dc.typeArticleen_US

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