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Vertical migration of radionuclides in undisturbed grassland soils |
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| Authors: | Gerald Kirchner Friederike Strebl Peter Bossew Sabine Ehlken Martin H Gerzabek |
| Institution: | 1. BfS Federal Office for Radiation Protection, D-38201 Salzgitter, Germany;2. Austrian Research Centers GmbH (ARC), Department of Radiation Safety and Applications, A-2444 Seibersdorf, Austria;3. Institute for Environment and Sustainability, DG Joint Research Centre, European Commission, I-21020 Ispra, Italy;4. Klinikum Bremen-Mitte, D-28177 Bremen, Germany;5. University of Natural Resources and Applied Life Sciences Vienna, Peter-Jordan-Strasse 82b, A-1190 Vienna, Austria |
| Abstract: | Literature data on numerical values obtained for the parameters of the two most popular models for simulating the migration of radionuclides in undisturbed soils have been compiled and evaluated statistically. Due to restrictions on the applicability of compartmental models, the convection–dispersion equation and its parameter values should be preferred. For radiocaesium, recommended values are derived for its effective convection velocity and dispersion coefficient. Data deficiencies still exist for radionuclides other than caesium and for soils of non-temperate environments. |
| Keywords: | Caesium CDE models Convection&ndash dispersion equation Model parameters Radionuclides Vertical migration |
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