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Enhancing Nuclear Safety


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Review and assessment of models for predicting the migration of radionuclides through rivers

Luigi Monte, Patrick Boyer, John E. Brittain, Lars Ha kanson, Samuel Lepicard, Jim T. Smith

Journal of Environmental Radioactivity 79; 273-296


Document type > *Article de revue

Keywords > fresh water / seawater, radionuclides, river, transfer model

Research Unit > IRSN/DEI/SECRE/LME

Authors > BOYER Patrick

Publication Date > 06/05/2005

Summary

The present paper summarises the results of the review and assessment of state-of-the-art models developed for predicting the migration of radionuclides through rivers. The different approaches of the models to predict the behaviour of radionuclides in lotic ecosystems are presented and compared. The models were classified and evaluated according to their main methodological approaches. The results of an exercise of model application to specific contamination scenarios aimed at assessing and comparing the model performances were described. A critical evaluation and analysis of the uncertainty of the models was carried out. The main factors influencing the inherent uncertainty of the models, such as the incompleteness of the actual knowledge and the intrinsic environmental and biological variability of the processes controlling the behaviour of radionuclides in rivers, are analysed.

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