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Variation in transfer factor of radiocaesium in bank voles (Clethrionomys glareolus) in clear cut and mature forest sites after the Chernobyl accident
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0003-1894-6059
Responsible organisation
2007 (English)In: Journal of Environmental Radioactivity, ISSN 0265-931X, E-ISSN 1879-1700, Vol. 92, no 2, 112-121 p.Article in journal (Refereed) Published
Abstract [en]

Bank voles that were collected between 1986-2004 at sites in Chernobyl fall out areas of northern Sweden showed higher 137Cs activity concentrations at the mature forest sites compared to clear cuts. This difference was not attributed to differences in ground deposition between sites but to differences in aggregated transfer rates to voles. Differences in transfer between forest types were evident for all years 1986-2004 but the change occurred at different rates in the two habitats. The apparent transfer factor between bilberry (Vaccinium myrtillus) and voles was positively related and indicated a biomagnification about 1.5 from vegetation to these small mammalian herbivores. The aggregated transfer factor to bank voles measured in the forest habitat, although starting at higher levels declined faster with time than clear cut sites and the differences between the forest habitat and the clear cut areas diminished with time. After the Chernobyl accident in 1986 the mean level in bank vole was 514 Bq/kg fresh mass (SD=505) that increased to 1485 Bq/kg (SD=881) in 1988. The activity concentration declined thereafter. The bank voles collected in similar habitats in 2004 contained on average 1022 Bq/kg (SD= 723). Still 18 years after the radio nuclide fallout over Sweden high activity concentrations in voles could be found.

Place, publisher, year, edition, pages
2007. Vol. 92, no 2, 112-121 p.
Keyword [en]
bank vole, forest, caesium, chernobyl, sweden
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:miun:diva-3911DOI: 10.1016/j.jenvrad.2006.10.002ISI: 000244238800005PubMedID: 17137685Scopus ID: 2-s2.0-33845340436Local ID: 4281OAI: oai:DiVA.org:miun-3911DiVA: diva2:28943
Available from: 2008-09-30 Created: 2009-06-08 Last updated: 2016-09-30Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
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