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Potential for high transient doses due to accumulation and chemical zonation of long-lived radionuclides across the geosphere-biosphere interface

Published online by Cambridge University Press:  09 January 2012

R.A. Kłos
Affiliation:
Aleksandria Sciences, UK
G. Shaw
Affiliation:
University of Nottingham, UK
S. Xu*
Affiliation:
Swedish Radiation Safety
B. Dverstorp
Affiliation:
Swedish Radiation Safety
M. Nordén
Affiliation:
Swedish Radiation Safety
A. Wörman
Affiliation:
Authority (SSM), SE-171 16 Stockholm, Sweden, Royal Institute of Technology (KTH), Sweden
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Abstract

Planning for the disposal of spent nuclear fuel is at an advanced stage in several nations around the world. Licensing of the disposal facility requires correspondingly detailed assessment of the future performance of the facility. With increased site-specific detail available to the assessment, local characteristics play an increasingly important role in determining the potential radiological risk posed by releases to the biosphere. In this paper we go beyond existing reference biosphere models and investigate the potential for specific accumulation mechanisms. The implications for the modelling carried out in long timescale performance assessment are discussed.

Type
Research Article
Copyright
© Owned by the authors, published by EDP Sciences, 2011

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References

IAEA, ‘Reference Biospheres’ for solid radioactive waste disposal: Report of BIOMASS Theme 1. IAEA-BIOMASS-6, (IAEA, Vienna, 2003).
SKB,. Long-term safety for KBS-3 repositories at Forsmark and Laxemar – a first evaluation, SKB Technical Report TR-06-09, (Svensk Kärnbränslehantering, Stockholm, 2006).
Karlsson, S, Bergström, U & Meili, M, Models for dose assessments - models adapted to the SFR-area, SKB Technical Report TR-01-04 (Svensk Kärnbränslehantering AB, Stockholm, 2001).
Kłos, R A., GEMA3D – landscape modelling for dose assessments, SSM report 2010:28 (Strålsäkerhetsmyndigheten, Stockholm, 2010).
Broed, R & Xu, S. Ecolego and AMBER Intercomparisons - testing capabilities in probabilistic calculations and sensitivity analyses, (Strål säkerhets myndigheten, Stockholm, in preparation).
Xu S., Wörman A., Dverstorp B., Kłos, R. A., Shaw, G and Marklund, L., SSI’s independent consequence calculations in support of the regulatory review the SR-Can safety assessment. SSI Report 2008:08 (Statens strålskyddsinstitut, Stockholm 2008).
Kirchner, G. Use of Reference Biospheres for Proving the Long-Term Safety of Radioactive Waste Repositories, J. Environ. Radioactivity 100 (2009) 435 – 437.
Marklund, L., Wörman, A., Geier, J., Simić, E., & Dverstorp, B., Impact of landscape topography and quaternary overburden on the performance of a geological repository of nuclear waste. Nuclear Technology, 163 (2008) pp. 165-179.
Wörman, A., Dverstorp, B., Kłos, R. A., Xu, S., Role of the Bio- and Geosphere Interface on Migration Pathways for Radionuclides and Ecological Effects. Nuclear Technology, 148, (2004), pp. 194 - 204.
SKB, The biosphere at Laxemar. Data, assumptions and models used in the SR-Can. Stockholm, SKB Report. R-06-83, (Svensk Kärnbränslehantering, Stockholm, 2006).
Jarvis, N. J., Taylor, A., Larsbo, M., Etana, A., & Rosén, K., Modelling the effects of bioturbation on the re-distribution of 137Cs in an undisturbed grassland soil. European Journal of Soil Science. 61, (2010), pp. 24-34.
Kellner, E., Wetlands - different types, their properties and functions, SKB Technical Report. TR-04-08 (Svensk Kärnbränslehantering, Stockholm, 2003).
Kłos, R. A., Limer, L. & Shaw, G., Advanced Biosphere Modelling for Safety Assessment, 2010, Project Report ASN-10-03 (Aleksandria Sciences, Sheffield, 2011).
Johansson, P-C, & Öhman, J., Presentation of meteorological, hydrological and hydrogeological monitoring data from Forsmark Site descriptive modelling: SDM-Site Forsmark, SKB Report R-08-10 (Svensk Kärnbränslehantering, Stockholm, 2010).
Karlsson, S. & Bergström, U., Nuclide documentation: Element specific parameter values used in the biospheric models of the safety assessments SR 97 and SAFE, SKB Report R-02-28 (Svensk Kärnbränslehantering, Stockholm, 2010).
Maillant, S., Sheppard, M. I., Echevarria, G., Denys, S., Villemin, G., Tekely, P., Leclerc-Cessac, E., & Morel, J L., Aged anthropogenic iodine in a boreal peat bog, Applied Geochemistry, 22, (2007) pp. 873-887.
Vikström, M. & Gustafsson, L-G., Modelling transport of wetlands and solutes in future wetlands in Forsmark, SKB Report. R-06-46 (Svensk Kärnbränslehantering, Stockholm, 2010).
Wheater, H.S., Bell, J.N.B., Butler, A.P., Jackson, B.M., Ciciani, L., Ashworth, D.J. Shaw, G.G., Biosphere implications of deep disposal of nuclear waste: the upwards migration of radionuclides in vegetated soils, (Imperial College Press, London, 2007).
Avila, R., Ekström, P-A, & Kautsky, U., Development of landscape dose factors for assessments in SR-Can, SKB Technical Report. TR-06-15 (Svensk Kärnbränslehantering, Stockholm, 2010).
IAEA. Quantification of Radionuclide Transfer in terrestrial and Freshwater Environments for Radiological Assessments, IAEA TecDoc 1616, (IAEA, Vienna, 2009).