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Radionuclide biological half-life values for terrestrial and aquatic wildlife
Beresford, N.; Beaugelin-Seiller, K.; Burgos, J.; Cujic, M.; Fesenko, S.; Kryshev, A.; Pachal, N.; Real, A.; Su, B.; Tagami, K.; Vives i Batlle, J.; Vives-Lynch, S.; Wells, C.; Wood, M. (2015). Radionuclide biological half-life values for terrestrial and aquatic wildlife. J. Environ. Radioactivity 150: 270-276. dx.doi.org/10.1016/j.jenvrad.2015.08.018
In: Journal of Environmental Radioactivity. Elsevier Science Publishing: Barking. ISSN 0265-931X, more
Peer reviewed article  

Available in  Authors 

Keywords
    Marine; Fresh water; Terrestrial
Author keywords
    Biological half-life; Wildlife; Non-human biota; Radionuclide

Authors  Top 
  • Beresford, N.
  • Beaugelin-Seiller, K.
  • Burgos, J.
  • Cujic, M.
  • Fesenko, S.
  • Kryshev, A.
  • Pachal, N.
  • Real, A.
  • Su, B.
  • Tagami, K.
  • Vives i Batlle, J., more
  • Vives-Lynch, S.
  • Wells, C.
  • Wood, M.

Abstract
    The equilibrium concentration ratio is typically the parameter used to estimate organism activity concentrations within wildlife dose assessment tools. Whilst this is assumed to be fit for purpose, there are scenarios such as accidental or irregular, fluctuating, releases from licensed facilities when this might not be the case. In such circumstances, the concentration ratio approach may under- or over-estimate radiation exposure depending upon the time since the release. To carrying out assessments for such releases, a dynamic approach is needed. The simplest and most practical option is representing the uptake and turnover processes by first-order kinetics, for which organism- and element-specific biological half-life data are required. In this paper we describe the development of a freely available international database of radionuclide biological half-life values. The database includes 1907 entries for terrestrial, freshwater, riparian and marine organisms. Biological half-life values are reported for 52 elements across a range of wildlife groups (marine = 9, freshwater = 10, terrestrial = 7 and riparian = 3 groups). Potential applications and limitations of the database are discussed.

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