Abstract:Increasing accumulation of cadmium (Cd) in urban and peri-urban savannah soils under long-term wastewater irrigation has been reported in some studies. Because of the insidiousness of Cd in soil ecosystems and the human health implications after the consumption of Cd in food and vegetables containing residues of the metal, we investigated its adsorption and solubility controls in selected urban soils. The latter were spiked with Cd at the rate of 200 mg Cd kg À1 soil and allowed to react at pH 4-8 for 25 days.… Show more
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