The transfer of 137Cs and 90Sr from feed to rabbits
Autor: | Gabriele Voigt, A. Savinkov, N. Semioshkina, G. Proehl |
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Rok vydání: | 2007 |
Předmět: |
Time Factors
Animal feed Health Toxicology and Mutagenesis Urine Feces Animal science Radioactive contamination Animals Environmental Chemistry Food Contamination Radioactive Waste Management and Disposal Radionuclide Chemistry business.industry Half-life Rabbit (nuclear engineering) General Medicine Animal Feed Pollution Kinetics Cesium Radioisotopes Internal dose Homogeneous Rabbits Nuclear medicine business Strontium-90 |
Zdroj: | Journal of Environmental Radioactivity. 98:166-176 |
ISSN: | 0265-931X |
Popis: | 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 0.4 d kg(-1) and 0.15 d kg(-1), respectively. The biological half-lives were estimated to be 0.1 d for (137)Cs and 0.14 d 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. |
Databáze: | OpenAIRE |
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