BEHAVIOUR OF RADIONUCLIDES IN THE MARINE ENVIRONMENT - PRESENT STATE OF KNOWLEDGE AND FUTURE NEEDS
Information on the behaviour of radionuclides in marine ecosystems and their transfer from the source to man represents an important input for the assessment of the radiological impact of human activities involving releases of artificial radionuclides into the environment or redistribution of natural radioisotopes. Therefore, one must take into account the relative importance of the different radionuclides for man and its environment, considering in detail source terms, dispersion and reconcentration processes, biogeochemical behaviour, transfer through food chains, etc. Present knowledge is adequate for conservative evaluations of the radiological impact of effluents released by nuclear industry in normal operations, but much further work is required for the application of dose optimization procedures. In the case of unplanned releases, the existing equilibrium models are not applicable. Therefore, efforts should be made to develop dynamic models, which require more information on the kinetic aspects of biogeochemical processes responsible for the transfer of radionuclides within the different marine ecosystems. A much better knowledge of the long-term behaviour of longer-lived radionuclides is very important in relation to the disposal of high level radioactive wastes.
Bibliographic Reference: WORKSHOP ON ENVIRONMENTAL INORGANIC CHEMISTRY, S. MINIATO, PISA (ITALY), JUNE 6-10, 1983. WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31126 ORA
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Record Number: 1989122013700 / Last updated on: 1987-01-01
Available languages: en