北極海における海洋汚染

抄録

The situation concerning the dumping of nuclear submarines, etc. into the Arctic Ocean by the former Soviet Union is being clarified. As its characteristics, waters in the dumping areas are very shallow and close to land.
The results of flow analysis which was conducted previously by using observation data (water temperature, salinity) and applying a method for obtaining the exchange flow in such a way that the inter-box input and output of salinity, heat and seawater volume is balanced, made it possible to successfully express the actual flow patterns.
In this research, concentration analysis and exposure dose analysis were conducted on the basis of a release scenario with considerations given to nuclide decay, mixing, scavenging and interaction between undersea particles and the bottom sediment layer.