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Ecosystem uptake and transfer of Sellafield-derived radiocarbon (14C) part 2: The West of Scotland
Tierney, K.M.; Muir, G.K.P.; Cook, G.T.; MacKinnon, G.; Howe, J.A.; Heymans, J.J.; Hughes, D.J.; Xu, S. (2017). Ecosystem uptake and transfer of Sellafield-derived radiocarbon (14C) part 2: The West of Scotland. Mar. Pollut. Bull. 115(1-2): 57-66. https://dx.doi.org/10.1016/j.marpolbul.2016.11.014
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoord
    Marien/Kust
Author keywords
    Radiocarbon (14C); Sellafield; West of Scotland; Marine ecosystem
Auteurs  Top 
  • Tierney, K.M.
  • Muir, G.K.P.
  • Cook, G.T.
  • MacKinnon, G.
  • Howe, J.A.
  • Heymans, J.J.
  • Hughes, D.J.
  • Xu, S.
Abstract
    Ecosystem uptake and transfer of Sellafield-derived radiocarbon (14C) were examined within the West of Scotland marine environment. The dissolved inorganic carbon component of seawater, enriched in 14C, is transported to the West of Scotland where it is transferred through the marine food web. Benthic and pelagic biota with variable life-spans living in the North Channel and Clyde Sea show comparable 14C activities. This suggests that mixing of 14C within the Irish Sea results in a relatively constant northwards dispersal of activity. Benthic species in the Firth of Lorn have similar 14C enrichments, demonstrating that Irish Sea residual water is the dominant source to this area. Measured 14C activities in biota show some similarity to western Irish Sea activities, indicating that dispersion to the West of Scotland is significant with respect to the fate of Sellafield 14C releases. Activities measured in commercially important species do not pose any significant radiological risk.
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