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Non-human biota assessments for geological disposal facilities – a study of the key uncertainties and importance for dose estimates

  • J. Barescut, D. Lariviere, T. Stocki, A.T.K. Ikonen (a1), K. Smith (a2), C.A. Robinson (a3), I. De La Cruz (a4), T. Lindborg (a5), Y. Thiry (a6), P. Strand (a7) and S. Norris (a8)...

Abstract

A programme of work, commissioned within the BIOPROTA collaborative forum, has recently been undertaken to assess the quantitative and qualitative elements of uncertainty associated with non-human biota (NHB) dose assessment in relation to the potential long-term release of radionuclides from a geological disposal facility (GDF). This was achieved through combining quantitative sensitivity and qualitative knowledge quality analyses based on the EC ERICA assessment approach and default assessment parameters. The results of the project demonstrate that this combination of approaches may be used to identify important parameters that could be significant in assessments of the impacts of any radionuclide release from a GDF on NHB, and for which there is low confidence. The output is intended to provide information on those parameters that may need to be considered in more detail for site-specific assessments. Such information should help users to enhance the quality of their assessments and build greater confidence in the results.

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[1][1]Robinson C.A., Smith K. and Norris S., J. Rad. Protection 30 (2010) 161–174.
[2][2]BIOPROTA, International Forum on the Application of Guidance and Methodologies for Assessing Radiation Impacts on Non-Human Biota from Radioactive Waste Disposal Facilities, Lappeenranta, Finland, 31 January – 1 February 2007, www.bioprota.org.
[3][3]ERICA, D-ERICA: (N. Beresford, J. Brown, D. Copplestone, J. Garnier-Laplace, B. Howard, C.-M. Larsson, D. Oughton, G. Pröhl and I. Zinger Eds.). www.ceh.ac.uk/protect/ ERICAdeliverables.html.
[4][4]Ekström P.-A., (2005). Eikos Available from http://ecolego.facilia.se/ecolego/files/eikos_help. pdf.
[5][5]Ekström P,-A. and Broed R., 2006 Posiva Working Report 2006–31.
[6][6]Broed, R., Avila, R., Bergström, U., Hjerpe, T. and Ikonen, A.T.K., Posiva Working Report 2007-109. Posiva Oy, Eurajoki, Finland, 2007, www.posiva.fi.
[7][7]Nirex, Technical Note No. 499169, (Nirex, UK, 2001).
[8][8]van der Sluijs J., Water Sci. Technol. 52 (2005) 87–92.
[9][9]Smith K., Robinson C.A., Jackson D., de la Cruz I., Zinger I. and Avila R., Posiva Working report 2010–69, (2010) www.posiva.fi.

Non-human biota assessments for geological disposal facilities – a study of the key uncertainties and importance for dose estimates

  • J. Barescut, D. Lariviere, T. Stocki, A.T.K. Ikonen (a1), K. Smith (a2), C.A. Robinson (a3), I. De La Cruz (a4), T. Lindborg (a5), Y. Thiry (a6), P. Strand (a7) and S. Norris (a8)...

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