Geochemical distribution of heavy metals in soils and stream sediments of Omiyale and environs, Ibadan, southwestern Nigeria
An assessment of geochemical distribution of heavy metals in soils and sediments of Omiyale was done to elucidate their effect on plants and animals in the study area. Nine (9) soil samples and four (4) stream sediments were randomly collected, sieved with the 63um sieve and analyzed using the induc...
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Veröffentlicht in: | The online journal of science and technology 2012-10, Vol.2 (4), p.30-40 |
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Sprache: | eng |
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Zusammenfassung: | An assessment of geochemical distribution of heavy metals in soils and sediments of Omiyale was
done to elucidate their effect on plants and animals in the study area. Nine (9) soil samples and four (4)
stream sediments were randomly collected, sieved with the 63um sieve and analyzed using the inductive
coupled plasma mass spectrometry (ICP-MS) technique. Fe2O3 is dominant in the stream sediment used as
waste disposal tanks. Influence of anthropogenic enrichment was noticed from the index of geoaccumulation
(Igeo) Zn (2.40), Pb (4.75); inter-elemental analysis Cu-Pb (0.6), As-Zn (0.7), and quantification of degree of
pollution Pb (62.2%) in soil, Pb (44.6%) in stream sediment with an increasing order Zn>Pb>Ba>Cu>As>Cd.
The study area is polluted with Pb and Zn attributed to urbanized anthropogenic sources, which are mostly
vehicular emission, and domestic sewage. Public effect of these elements could include lung cancer and
cardiovascular diseases. Based on the above evaluation, a recommendation in respect of public awareness
program on sanitizations and contamination of quality control of soil and sediments are encouraged. |
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ISSN: | 2146-7390 2146-7390 |