Abstract
The knowledge about environmental sensitivity of the marine regions to radionuclide release can be used for the development of response strategies and improvement of design-maker systems. The present results are based on the consequences analysis after potential Russian submarine accident involving a modern vessel. The radioecological consequences are based on modelling of potential releases of radionuclides, radionuclide transport and uptake in the marine environment. The sensitivity analysis is based on the comparison of the results of simulations with the recommendations and criterions for protection of the human population and the environment. The results show that the doses to marine organisms living in the sea sediment near the accident location, and dose rates to the critical group are the most sensitive state parameters (endpoints) for describing the consequences to the marine environment in the present evaluation.
Highlights
The term “environmental sensitivity of marine regions” describes the vulnerability of different marine areas to harmful effects of radionuclide releases
The following state parameters were selected as endpoints: concentrations of radionuclides in typical seafood, collective dose rates to man, individual doses for the critical group and doses to marine organisms
The results show that the doses to marine organisms living in the sea sed
Summary
The term “environmental sensitivity of marine regions” describes the vulnerability of different marine areas to harmful effects of radionuclide releases. This is intuitively understood, it is not easy to find a clear definition of the term that is suitable for modeling. It is necessary to give some consideration to the different elements of the marine environment, including: (i) the water and sediment phases and their interactions and (ii) different pathways and bioaccumulation processes of the marine organisms for the different radionuclides. The present study will provide a sensitivity analysis of different endpoints, based on a study of the radioecological consequences after a hypothetical accident scenario for a modern Russian nuclear submarine, where a wide set of radionuclides is released into the marine environment
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