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dc.contributor.author Masamba, W.R.L.
dc.contributor.author Muzila, A.
dc.date.accessioned 2011-12-02T12:06:51Z
dc.date.available 2011-12-02T12:06:51Z
dc.date.issued 2005
dc.identifier.citation Masamba, W.R.L. & Muzila, A. (2005) Spatial and seasonal variation of major cation and selected trace metal ion concentration in the Okavango-maunachira-Khwai channels of the Okavango delta, Botswana Notes and records, Vol. 37, pp. 218-226 en_US
dc.identifier.uri http://hdl.handle.net/10311/951
dc.description.abstract The concentration of the metal ions Na, K, Ca, Mg, Zn, Cu, Mn, Co, Fe, Cr, Ni, and Pb were determined in water samples of the Okavango Delta’s panhandle - Maunachira-Khwai water system during periods of high (June 2004) and low (November 2004) water flow. The concentrations of Na (1.67 to 12.77 mg/L), K (1.37 to 5.80 mg/L), Ca (2.46 to 6.98 mg/L) and Mg (0.69 to 2.83 mg/L) increased with distance from Mohembo indicating concentration of these metal ions by evaporation. Cu (up to 0.028 mg/l), Co (up to 0.053 mg /L), Fe (0.010 to 0.60 mg/L), Ni (up to 0.052mg/L), Mn (up to 0.044 mg/L) and Pb (0.017 to 0.28 mg/L) generally decreased in concentration with increase in distance from Mohembo, indicating that the Delta acts as a filter for these ions. Zn (0.049 to 0.101 mg/L) had lower concentrations at Mohembo than the other sampling sites, indicating solubilisation of previously deposited metals ions, or presence of Zn within the Delta. Chromium was not detected except at Seronga (0.026 mg/L) during periods of high water flow. en_US
dc.language.iso en en_US
dc.publisher Botswana Society en_US
dc.subject Okavango delta en_US
dc.subject Mohembo en_US
dc.subject trace metal en_US
dc.subject metal ions en_US
dc.title Spatial and seasonal variation of major cation and selected trace metal ion concentration in the Okavango-Maunachira-Khwai channels of the Okavango delta en_US
dc.type Published Article en_US
dc.link http://www.jstor.org/stable/40980415?&Search=yes&searchText=wellington&searchText=masamba&list=hide&searchUri=%2Faction%2FdoBasicSearch%3Ffilter%3Diid%253A10.2307%252Fi40043997%26Query%3Dmasamba%2Bwellington%26wc%3Don&prevSearch=&item=1&ttl=1&returnArticleService=showFullText en_US


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