, Vol 1 (2010)

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K. E. Ayeni


The amounts of heavy metals pollution (Cd, Pb, Hg, Cu, Ni, Zn, Fe and Mn) in selected industrial locations were determined in the soil samples and vegetation at the refuse dump site and water samples nearest to the refuse dump area. The five different locations used were:- Osogbo Steel Rolling, Osogbo; Okin Biscuit, Ijagbo; Okin Malt, Offa; Global soap and Detergent Industry, Ilorin and International Breweries Limited (IBL) Ilesha.  The method used for the samples were acid digestion method to obtain a concentrate samples followed by analysis using Atomic Absorption Spectrometer (AAS).  Results showed that concentrations of Mn, Fe and Pb were found to be highest in the soil samples, vegetations, and water samples collected from Osogbo Steel Rolling.  Concentrations of Fe, Zn, Pb and Mn were found to be higher in the samples of Global Soap and detergent Industry followed by Okin Malt Offa, Okin Biscuit Ijagbo and IBL Ilesha had the least values.  Out of the three samples analyzed, concentrations for soils samples was observed to be the highest followed by the vegetation and water samples had the least concentrations. Therefore, this study has shown that the magnitude of pollution depends upon the distance from the refuse dump location, depth of the underground water (for water samples) and the solubility of the metals.


KEYWORDS: pollution; solubility polythene; Transition metals; deionized water

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