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AJ Adebayo
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JT Jayoye
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L Labunmi

International Research Journal of Public and Environmental Health
Vol.4 (7), pp. 136-147, August 2017
ISSN 2360-8803
Available online at
Article 17/ID/JPRH001/ 12 pages
Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.

Original Research Article

Delineation of heavy metals in soils from auto-mechanic workshops within Okitipupa, Ondo State, Nigeria

Adebayo Alaba Joseph1; *Jayoye J. Titilope2, Ilemobayo Ifedayo Oguntimehin1 and Labunmi Lajide3

1Department of Chemical Sciences, Ondo State University of Science and Technology, Okitipupa, Ondo- State, Nigeria
2Department of Chemistry, Federal University Ndufu Alik eIkwo, Ebonyi State, Nigeria.
3Department of Chemistry, Federal University of Technology, Akure, Ondo-State

*Corresponding Author E-mail: titilope12(at)

Tel: +66641425482

date Received: December 20, 2016     date Accepted: February 9, 2017     date Published: August 3, 2017


Auto Mechanic Workshops in the study area generate waste containing hazardous, soil samples were collected from selected automobile workshops (four) in the study area at the depths of 0-15cm, 30-45cm, 45-60cm, 60-75cm and 75-100cm. A total of twenty- four (24) soil samples were collected in four different locations in the ancient town of Okitipupa. Six control samples were also collected in a farm land about 3km away from Auto Mechanic Activities.  The soils were analysed for heavy metals levels. Ten heavy metals (Cd, Zn, Cu, Cr, Pb, Fe, Mn, Co, Ni and Mg) were analysed using AAS techniques. The heavy metal concentration for the ten metals determined in soil was in the order; Fe > Mg > Zn >Mn> Cu >Pb> Ni > Cr > Cd > Co. Heavy metals concentrations (mg/Kg) Ranging from 0.01±0.00 to 112.00±0.00 in all the sites. Site C is about ten years older than others recorded the highest concentrations of heavy metals in all the sites. Comparing the results of the study area with the control shows that the study area is moderately contaminated; the values obtained were below the DPR permissible limit for soil. It is therefore recommended that a separate portion of land be set apart for automobile workshops in Okitipupa.

Key words: Heavy metal, soil, pollution, automobile, profile, contamination plume.

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