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  • Title: Soil-plant transfer of plutonium and americium in contaminated regions of Belarus after the Chernobyl catastrophe.
    Author: Sokolik GA, Ovsiannikova SV, Ivanova TG, Leinova SL.
    Journal: Environ Int; 2004 Sep; 30(7):939-47. PubMed ID: 15196842.
    Abstract:
    Experimental data are presented for the soil to plant transfer of plutonium and americium into the main species of grass vegetation of Belarusian grasslands contaminated as a result of the Chernobyl catastrophe of 1986. The content of radionuclides in pore soil solutions and the total reserve of biologically available forms of plutonium and americium in rooting layers of different soil varieties have been established. The distribution coefficients of (239,240)Pu and 241Am between the solid phase and pore waters of soils have been evaluated. The migration ability and biological availability of radionuclides in soils with different structures of the absorbing complex have been analyzed for various landscape conditions. The dependence of soil to plant transfer of plutonium and americium on the content and composition of organic matter, and other characteristics of the soil complex has been studied. On the basis of these data, predictions of the contamination levels of the main grass species of natural and agricultural ecosystems by 241Am are presented.
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