Investigating soils retention ratios and modelling geochemical factors affecting heavy metals retention in soils in a tropical urban watershed

Célestin Defo (), Bernard Palmer Kfuban Yerima () and Nestor Bemmo
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Célestin Defo: University of Dschang
Bernard Palmer Kfuban Yerima: University of Dschang
Nestor Bemmo: National Advanced School of Engineering

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2017, vol. 19, issue 5, No 4, 1649-1671

Abstract: Abstract This study aimed at investigating the retention of Pb and Cd in soils and the geochemical factors influencing the adsorption of these pollutants. Soil samples were air-dried and ground to pass through a 2-mm sieve, and different soil extracts were prepared for chemical analysis (organic matter, cation exchange capacity and pH). Total Pb and Cd were extracted with diacid using digestion method and determined by atomic adsorption spectrophotometer (AAS) after filtration. Results revealed that the heavy metals retention ratio (RR) of the Rhodic ferralsol, Xanthic ferralsol and Mollic gleysol (2) were very high for Cd (>80 %) and was relatively low (generally

Keywords: Regression analysis; Heavy metals; Urban soils pollution; Principal component analysis; Cluster analysis (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1007/s10668-016-9819-2

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