Spectrophotometric Evaluation of Heavy Metal Speciation in Lead-Zinc Mine Soil from Enyigba in Ebonyi State
Journal Title: IOSR Journal of Applied Chemistry (IOSR-JAC) - Year 2018, Vol 11, Issue 10
Abstract
Soil contamination by heavy metal poses threat to the environment and renders the land less valuable. The heavy metal speciation in a Pb-Zn mine soil of Enyigba in Ebonyi State has been studied using Varian AA240 Spectrophotometry.A five-step sequential extraction procedure adopted by Tessier, Campbell and Bisson was modified for the extraction of the various fractions of the metal. Results obtained showed that total heavy metals assayed were all higher than the WHO recommended limit in soil except Cu (1.79ppm) which is within the WHO limit of 2.00ppm. The highest concentration of Zn, Pb, Mn, Cu, As, Cd, and Cr were obtained in the residual (F5) fraction, 20.04, 11.68, 20.32, 0.68, 19.54, 0.70 and 0.56 respectively. While Fe has the highest concentration in the exchangeable fraction (66.24).
Authors and Affiliations
Nworu J. S, Oparanozie T. I, Ogbolu B. O, Onunkwo I. C, Osideru O. O
Keywords
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- EP ID EP414415
- DOI 10.9790/5736-1110011824.
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