Aquatic biota in the Rhone River downstream of the Marcoule nuclear complex in France are exposed to natural sources of radiation and to radioactivity released from the Marcoule complex.
A simple conservative screening level model was used to estimate the range of concentrations in aquatic media (water, sediments, and aquatic organisms) of both artificial and natural radionuclides and the consequent absorbed (whole body) dose rates for aquatic organisms.
Five categories of aquatic organisms were studied, namely, submerged aquatic plants (phanerogam), non-bottom-feeding fish, bottom-feeding fish, mollusca, and fish-eating birds.
The analysis was based on the radionuclide concentrations reported in four consecutive annual radioecological monitoring reports published by French agencies with nuclear regulatory responsibilities.
The results of this assessment were used to determine, qualitatively, the magnitude of any potential health impacts on each of the five categories of aquatic organisms studied. (...)
Mots-clés Pascal : France, Europe, Centrale nucléaire, Milieu aquatique, Irradiation ionisante, Radiocontamination, Dosimétrie, Modèle mathématique, Effet biologique, Organisme
Mots-clés Pascal anglais : France, Europe, Nuclear power plant, Aquatic environment, Ionizing irradiation, Radioactive contamination, Dosimetry, Mathematical model, Biological effect, Organism
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0475438
Code Inist : 002B30A02A. Création : 22/03/2000.