Radioactivity of French Coast of the Channel Due to the Release of Technecium 99 and Iodine 129: Modelisation and Measurements

Radioactive releases of Iodine 129 are controlled with measurements of the radioactivity of the liquid effluents before to be released in sea from the outlet of the reprocessing plant of La Hague. The effects on marine environment are contolled with a radioactive survey of Technecium 99 and Iodine 129 in Fucus (common seaweed).This radioactivity is measured along north Coast of France from Roscoff in the west of Britany to Wimereux close to Belgium frontier. On other hand, the theoritical study of dispersion of radionuclides in the Channel has permitted to make a model of simulation of the transfer of pollutants and particularly Technecium 99 and Iodine 129.