This chapter is dedicated to study of the spread of radioactivity in the Arctic using the generic model system (GMS) described in Chapter 3. Two sets of numerical experiments were carried out: (1) simulations or “hindcasts” of past contamination by anthropogenic radionuclides, originating from nuclear bomb testing, atmospheric fallout from Chernobyl, discharges from the Sellafield Reprocessing Plant, and radionuclide transport by river from nuclear plants; (2) simulations of contamination as a result of potential accidents in nuclear plants and submarines.
