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  • Title: Soil to plant transfer of 137Cs and 60Co in Ferralsol, Nitisol and Acrisol.
    Author: Wasserman MA, Bartoly F, Viana AG, Silva MM, Rochedo ER, Perez DV, Conti CC.
    Journal: J Environ Radioact; 2008 Mar; 99(3):546-53. PubMed ID: 17905488.
    Abstract:
    In this study, soil to plant transfer factor values were determined for 137Cs and 60Co in radish (Raphanus sativus), maize (Zea mays L.) and cabbage (Brassica oleracea L. var. capitata) growing in gibbsite-, kaolinite- and iron-oxide-rich soils. After 3 years of experiment in lysimeters it was possible to identify the main soil properties able to modify the soil to plant transfer processes, e.g. exchangeable K and pH, for 137Cs, and organic matter for 60Co. Results of sequential chemical extraction were coherent with root uptake and allowed the recognition of the role of iron oxides on 137Cs behaviour and of Mn oxides on 60Co behaviour. This information should provide support for adequate choices of countermeasures to be applied on tropical soils in case of accident or for remediation purposes.
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