Consequences of severe radioactive releases to Nordic Marine environment

• Consequences of hypothetical severe radioactive releases to Nordic marine environment – the Baltic Sea and the North Atlantic - has been considered. As a reference, releases from a 3000 MWth nuclear power plant reactor size was used for the Baltic Sea area accidents. Individual dose to human could be ten to some hundreds of millisieverts in local sea area. In the Baltic Sea area, individual dose was 0.01 mSv after one year and 0.1 mSv after five years from the release event. The collective dose estimate was 880 manSv. In case of hypothetical submarine accidents at the North Atlantic, the marine fluxes are important factors. According to simulation results, e.g. maximum concentration near the source region at the Icelandic coast sinks below 1% only after 300 days. Consequences of an accident of a modern submarine for e.g. to Kattegat region was calculated. The arising doses can be equal or higher than from natural sources. The models predictions seem to reach nice consistence with measured values in qualitative and quantitative considerations.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)

Nyckelord

severe radioactive releases

accidents

marine environment

nuclear power plants

submarines

doses

validation

Publikations- och innehållstyp

vet (ämneskategori)

rap (ämneskategori)