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The transfer of (137)Cs and (90)Sr from feed to rabbits.
J. Environ. Radioact. 98, 166-176 (2007)
Radiological assessment of the impact of nuclear weapons testing on the local population in the Semipalatinsk Test Site (STS) requires comprehensive site-specific information on radionuclide behaviour in the environment. However, information on radionuclide behaviour in the conditions of the STS is rather sparse and, in particular, there are no data in the literature on parameters of radionuclide transfer from feed to rabbit products which have been identified as contributors to internal dose to the inhabitants. The transfer of (137)Cs and (90)Sr to rabbit meat was studied under laboratory conditions in a controlled experiment with 32 locally bred rabbits maintained in the Kazakh Agricultural Research Institute. The equilibrium transfer coefficients for (137)Cs and (90)Sr from feed to rabbit meat were estimated to be 0.4dkg(-1) and 0.15dkg(-1), respectively. The biological half-lives were estimated to be 0.1d for (137)Cs and 0.14d for (90)Sr. Whereas for (137)Cs the distribution in the body is relatively homogeneous, there are large differences between the organs and tissues for (90)Sr for which, as expected, the highest concentrations were found in bone.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Rabbits; 137Cs; 90Sr; Transfer of radionuclides; Transfer coefficient
ISSN (print) / ISBN 0265-931X
Quellenangaben Volume: 98, Issue: 1-2, Pages: 166-176
Reviewing status Peer reviewed
Institute(s) Institute of Radiation Protection (ISS)