Environmental Modelling at Nottingham
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Radiocaesium Transfer in Sheep We have done some work developing compartment models for the transfer of radiocaesium between the diet and tissues of sheep. These models have been developed using a range of experimental data sets derived from the literature.
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A typical model is shown opposite. Transfers between compartments are modelled as first order transfers and the implementation of the model is essentially a matter of estimating the rate coefficients by fitting the model to the experimental data. The main application of the these models is in the interpretation of detailed experimental results. They don't really have a role in the direct prediction of food chain contamination. References Galer AM, Crout NMJ, Beresford NA, Howard BJ, Mayes RW, Barnett CL, Eayres H, Lamb CS (1993). Dynamic radiocaesium distribution in sheep: measurement and modelling. J. Environ. Rad. 20:35-48 Crout NMJ, Beresford NA, Howard BJ, Mayes RW, Assimakopoulos PA, Vandecasteele C. (1996).. The development and testing of a revised model of radiocaesium transfer to sheep tissues. Radiation & Environmental Biophysics 35:19-24. |
