The levels of Cu, Pb, Cd, Zn and Ca in water and sediments collected from the Ebute Ogbo River catchments, Ojo, Lagos, Nigeria were determined by flame atomic absorption spectrometry. The samples were collected in year 2008 and 2009. The results obtained showed a decrease in the Cd, Pb and Ca levels in water samples for 2009 compared to year 2008. However, Cu and Zn levels were in the increase. Nevertheless, metals burden in the sediment samples revealed decreased concentrations for the year 2009 samples. Data obtained were compared with the WHO limits and the Nigeria’s background values (NBV). Statistical t-test was used to test statistical differences in the samples.
Key words: River, pollution, metals, monitoring.
Abbreviations: NBV, Nigeria’s background values; MPI, metal pollution index;WHO, World Health Organization.
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