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环境科学 2009
Bioavailability of Cadmium Associated with Oxides in Sediment: Effects of Species of Mineral, Association Form and Aging on Bioavailability
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Abstract:
The bioavailability of heavy metals in sediments is largely controlled by their speciation.Effects of different Cd speciation associated with metal hydroxide on Cd bioavailability were studied.Iron and aluminum hydroxides were chosen as representatives of the oxides commonly present in sediments.In cultivar system,Hoagland solution was used as nutrition supply,and metal hydroxide associated with Cd as the only source of contamination and Phragmites australis was induced to study Cd bioaccumulation.After 13 ...