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Transfer to animals

By B.J. Howard, N.A. Beresford, C.L. Barnett and S. Fesenko


Data have been compiled to derive animal product transfer coefficients for radionuclides to update the values given in\ud Technical Reports Series No. 364. Significant new data inputs have been incorporated from an extensive review of Russian\ud language information and inclusion of data published since the early 1990s. The resultant database has been used to provide\ud reference transfer coefficient values for a range of radionuclides to (i) cow, sheep and goat milk, (ii) meat (muscle) of cattle,\ud sheep, goats, pigs and poultry and (iii) eggs. The approaches and procedures used to identify and collate data, and\ud assumptions used are given. For most animal products, transfer coefficient values for elements additional to those in\ud Technical Reports Series No. 364 are provided, although some elements were considered in the earlier evaluation which were\ud not included in this review. Differences between the Technical Reports Series No. 364 ‘expected’ values and the reference\ud values from this document, which will be incorporated into the revised transfer parameter handbook, are discussed. An\ud alternative approach to quantifying transfer by using concentration ratios is evaluated and CR values which could be applied\ud across animal species have been provided for milk and meat. Information on fractional gastrointestinal absorption in adult\ud ruminants has been compiled and reference values presented. Despite these improvements many data gaps remain

Topics: Ecology and Environment
Publisher: IAEA
Year: 2009
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