Use of transfer factors to characterize uptake of selenium by plants |
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| Authors: | C Bitterli GS Bañuelos R Schulin |
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| Institution: | 1. Institute of Terrestrial Ecosystems, ETH Zurich, Universitaetstr. 16, CH-8092 Zürich, Switzerland;2. USDA-ARS, 9611 S. Riverbend Ave., Parlier, CA USA |
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| Abstract: | The radioactive selenium isotope 79Se can be a component of radioactive waste produced in nuclear power plants. The accidental release of 79Se in the environment from power plants or nuclear waste repositories, and subsequent transfer of 79Se into soils, plants and food chain, are relevant concerns in Europe. In environmental risk assessment models, the ability of plants to take up Se is often characterized by means of soil-to-plant transfer factors (TF). However, these recommendations take little or no account of the variability in plant Se accumulation among plant species and differences in Se distribution between plant parts. Also, such factors as soil type, form of Se, climatic conditions, as well as the chemical form in which Se is present in the soil, are not taken into consideration. |
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| Keywords: | Selenium Transfer factors |
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