International Research Journal of Agricultural Science and Soil Science

International Research Journal of Agricultural Science and Soil Science (ISSN: 2251-0044) Vol. 3(8) pp. 310-316, August 2013. DOI: http:/dx.doi.org/10.14303/irjas.2013.037            
Copyright © 2013 International Research Journals

 

Full Length Research Paper

Evaluation of zinc enrichment and depletion of selected arable soils in Nigeria, using calcium as a crustal reference element

*1Uduma, A.U. and 2Jimoh, W.L.O.

*1Department of Pure and Industrial Chemistry, Bayero University, Kano, Nigeria

2Department of Pure and Industrial Chemistry, Bayero University, Kano, Nigeria

*Corresponding Author E-mail: nykefidel@yahoo.com; Telephone: 08129009080

Abstract

 

Zinc (Zn) content was evaluated of the arable soils in the vicinity of mining and dumping sites in Nigeria. Its content the arable soils assayed by means of atomic absorption spectrophotometry (AAS) ranged from 48.3 to 280.4mg/kg. The enrichment factor (EF) calculated by using calcium as a crustal reference element fell within a range of 5.5 – 38.6. The mean values of the enrichment factor of 12.33 classified the soil as significantly contaminated with zinc. Anthropogenic activities contribute significantly to the elevated level of zinc in the studied areas.

Keywords: Zinc, Arable Soils, Enrichment, Depletion, Enrichment Factor, Anthropogenic Activities.

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