Section 7
Chapter 6,253

Radioecology of the rhone basin france data on the fish of the rhone 1974 1984

Lambrechts, A.; Foulquier, L.

Journal of Environmental Radioactivity 5(2): 105-122


ISSN/ISBN: 0265-931X
Accession: 006252987

Some twenty nuclear sites are located along the Rhone. A radioecological study of the river has been in progress since 1974 and a brief outline is given here of its hydrological, chemical, sedimentological and biological features. The techniques used for sampling, processing and radioactivity measurement in fish are also described. A summary of the results demonstrates the influence of the nuclear power stations and fuel cycle plants on the evolution of radioactivity levels in fish as a function of time or distance from liquid waste discharge points. Comparison with data for the Meuse shows that at the present time activities in fish downstream of the nuclear power stations are comparable in both rivers. Levels are, however, higher in the Rhone downstream from the Marcoule reprocessing plant. The data collected in situ together with the results of laboratory experiments demonstrate the mechanisms of transfer of radionuclides into the aquatic environment and supply information for the protection of envirionmental health.

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