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Updated: Jul 20, 2026

Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
A dynamic model for assessing radiological consequences of tritium routinely released in rivers. Application to the
P Ciffroy1, F Siclet, C Damois
1EDF, Division Recherche et Développement, Département Laboratoire National d'Hydraulique et Environnement, 6 quai Watier, 78401 Chatou, France. philippe.ciffroy@edf.fr
Abstract:
A dynamic model for assessing the transfer of tritium in a food chain was applied to the Loire River, where 14 nuclear power plants situated on five different sites operate. The model considers several potential exposure pathways in the aquatic and terrestrial ecosystems: transfer of tritium through the aquatic food chain (especially fish); use of river water for agricultural purposes (irrigation) and transfer of radionuclides through the terrestrial food chain (vegetables, meat, milk); subsequent internal exposure of humans due to ingestion of contaminated foodstuffs. For biological environmental compartments, the transfer of tritium to organic matter (i.e. OBT) was simulated. For each of the parameters introduced in this model, a probability density function, allowing further uncertainty and sensitivity analyses, was proposed. Uncertainty/sensitivity analyses were performed to determine a confidence interval for the mean annual dose to critical groups and to identify the parameters responsible for the uncertainty and subsequent research priorities.
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