alexa Heavy Metal Concentrations in Plants and Soil along Heavy Traffic Roads in North Central Nigeria
ISSN: 2161-0525

Journal of Environmental & Analytical Toxicology
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Research Article

Heavy Metal Concentrations in Plants and Soil along Heavy Traffic Roads in North Central Nigeria

Ogundele DT1*, Adio AA2 and Oludele OE3
1Department of Chemical, Geological and Physical Sciences, Kwara State University, Malete, Nigeria
2School of Allied Health and Environmental Sciences, Kwara State University, Malete, Nigeria
3Department of Industrial Safety Technology, Petroleum Training Institute, Effurun, Delta State, Nigeria
Corresponding Author : Ogundele DT
Department of Chemical
Geological and Physical Sciences
Kwara State University, Malete, Nigeria
Tel: +2348034396529
E-mail: [email protected]
Received: September 15, 2015 Accepted: October 31, 2015 Published: November 04, 2015
Citation: Ogundele DT, Adio AA, Oludele OE (2015) Heavy Metal Concentrations in Plants and Soil along Heavy Traffic Roads in North Central Nigeria. J Environ Anal Toxicol 5:334. doi:10.4172/2161-0525.1000334
Copyright: © 2015 Ogundele DT, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Plant and soil samples were analyzed to determine the heavy metals (Cd, Zn, Cu, Cr, Pb and Ni) along major roads in Kwara State, Nigeria. Control plant and soil samples were obtained from Kwara State University (KWASU). Eight soil and plant samples were collected. One sample each of soil and plant was collected from Kwara State University as the control sample. Three plant species (Kyllinga pumila michx, Kyllinga squamulata thanm ex vahl, Cenchrus biflorus roxb) on which animals feed were collected along major roadsides. The samples were digested using wet method and heavy metals were analyzed using Atomic Absorption Spectrophotometry Technique. Lead concentration of plants from the sites was found between 24-142 mg/kg and 24-157.667 mg/kg in soil samples. Copper was found between 28.55-115.2 mg/kg and 7.70-80.13 mg/kg in plant and soil samples respectively. Zinc ranges from 13.00-120.45 mg/kg and 30.8- 219.23 mg/kg in plants and soil respectively. Cadmium was between BDL-0.400 mg/kg and BDL-0.366 mg/kg in plants and soil. Chromium was detected between BDL-53.65 mg/kg and 10.57-77.10 mg/kg in plants and soil respectively. Nickel was between 1.65-11.85 mg/kg and 1.83-14.87 mg/kg in soil and plants samples. Heavy metals (Cd, Zn, Cu, Cr, Pb and Ni) in the control samples were found to be 0.35, 40.00, 88.55, 0.65, 238 and 0.65 mg/kg for Cadmium, Zinc, Copper, Chromium, Lead and Nickel in plants respectively. The soil samples were between 0.066, 9.50, 4.83, 55.63, 33.667, 4.33 mg/kg, Zinc, Copper, Chromium, Lead and Nickel respectively. Based on this study, plant and soil along road sides were found with high concentration of heavy metals.

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