Assessment of Cd concentration of crude oil polluted arable soils
Journal Title: International Journal of Environmental Science and Technology - Year 2007, Vol 4, Issue 3
Abstract
Thirty soil samples were analyzed for their properties and cadmium concentration in polluted and unpolluted sites of Isikwuato, Abia State, Nigeria. Polluted soils were more acidic (pH = 4.38) than unpolluted ones (pH = 5.22). Bulk density increased in polluted soils (1.51 g/cm3). Higher average value of organic matter was recorded in polluted soils (mean value = 1.42 %) unlike 0.98 % found in unpolluted soils. Cadmium concentration was higher in polluted soils (0.76 mg/kg) contrasting with 0.02 mg/kg obtained in their unpolluted counterparts. Good relationship existed between exchangeable acidity and cadmium status in polluted soils (R = 0.83, R2 = 0.77, N = 30) as opposed to values in unpolluted soils (R = 0.58, R2 = 0.49, N = 30).
Authors and Affiliations
E. U. Onweremadu, C. I. Duruigbo
Keywords
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