HEAVY METAL LEVELS IN ROOTS AND LEAVES OF SOME VEGETABLES GROWN IN ILARO, YEWA SOUTH L.G.A. OGUN STATE

Abiaziem, C. V and owolabi, a. o. (2013) HEAVY METAL LEVELS IN ROOTS AND LEAVES OF SOME VEGETABLES GROWN IN ILARO, YEWA SOUTH L.G.A. OGUN STATE. In: 2nd National Conference of the School of Applied Science Federal Polytechnic Ilaro, 7th – 9th May, 2013, The Federal Polytechnic, Ilaro.

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Abstract

Four metals of environmental concern were analyzed. This study is aimed at determining levels of heavy metals in some vegetables grown in Ilaro. The levels of Pb, Co, Cr, and Fe were determined in the roots and leaves of spinach (Amaranthus caudatus), groundnut (Arachis hypogaea), and beans (Phaseoulus Vulgaris) grown in Ilaro Ogun State, Nigeria and in soil where the vegetables were grown, using FAAS techniques. The results revealed that heavy metals were higher in the roots than the leaves in all the vegetables investigated and that the levels of the heavy metals were higher in the soil samples than the vegetables. For instance 0.75mg/kg of Cr and 0.55 mg.kg of Cr were obtained in the leaves and roots of groundnut, respectively. The heavy metals levels in the soil samples ranged from 0.33mg/kg of Pb to 4.48 mg/kg of Fe. The order of contamination of the heavy metals in both the soil and vegetable samples were; Fe>Co>Cr>Pb. It could be concluded that spinach, groundnut and beans obtained in Ilaro contained Co, Cr, Pb, and Fe in variable concentrations due to different farming activities such as application of fertilizers and irrigation with waste water. The heavy metal levels were lower than the WHO maximum limit of the heavy metals in plants. Hence the vegetables are considered safe for consumption.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Q Science > Q Science (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Mr Taiwo Egbeyemi
Date Deposited:	02 Jun 2020 15:20
Last Modified:	02 Jun 2020 15:20
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/322

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