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Asian Journal of Applied Sciences
Year: 2014  |  Volume: 7  |  Issue: 7  |  Page No.: 552 - 567

Effect of Steel Production on the Quality of Soil Around Udu Section of Warri River in the Vicinity of a Steel Plant, Nigeria

Samuel O. Akporido, Patience O. Agbaire and Ayodele R. Ipeaiyeda    

Abstract: Street production is a major contributor of heavy metals to the environment. Soil samples were collected from seven sampling stations around Udu River in the vicinity of a steel plant and two sampling stations as control from around Ovwuvwe stream for two years (two dry and two rainy seasons). Heavy metals were determined by flame atomic absorption spectroscopy after digestion with 2M HNO3 and physicochemical parameters determined by various standard methods. Important results are pH (5.85±0.32), Fe (3110±1500 mg kg-1), Pb (126±40 mg kg-1), Cd (9.2±6.4 mg kg-1), Zn (112±41 mg kg-1), Ni (44±50 mg kg-1) and Cu (18.3±8.2 mg kg-1). The average concentrations of all the metals with the exception of Cu exceeded different soil guideline values with which they were compared. Most sampling stations are polluted with heavy metals, the contamination factor of the heavy metals exceeded unity in most sampling sites. The Pollution Load Index (PLI) of stations A and C are 4.03 for each, respectively, they were ranked as moderately polluted to highly polluted and they are the most polluted sampling stations. It was also observed that sampling stations nearer the steel plant are more polluted than others.

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