Evaluation of consequences of the potential accidents in the Norwegian coastal waters

Norwegian Radiation Protection Authority, PO Box 55, 1332 Østerås, Norway

Abstract

Potential accidents with modern operative nuclear submarine and with transport of spent nuclear fuel along the Norwegian coastal line have been under evaluation. Hypothetical release scenarios which include immediate discharge of release fraction and constant release of fuel corrosion products, were developed. Modelling work has been done using a compartment model developed at NRPA which includes the dispersion of radioactivity in marine regions, processes of water-sediment interactions and dose assessment modules. Collective dose-rates to man, concentration of radionuclides in biota/sea-foods and doses to marine organisms were calculated. Results from the calculation of concentrations of radionuclides in marine organisms as well as doses to man and biota are discussed.