Consequences of severe radioactive releases to Nordic Marine environment

Mikhail Iosjpe, Mats Isaksson, Hans Pauli Joensen, Juhani Lahtinen, Kai Logemann, Sigurður Emil Pálsson, Per Roos, Vesa Suolanen, Vesa-Pekka Vartti

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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.
Original languageEnglish
Place of PublicationRoskilde
PublisherNKS-Nordic Nuclear Safety Research
Number of pages99
ISBN (Print) 978-87-7893-372-0
Publication statusPublished - 2014

Publication series



  • severe radioactive releases
  • accidents
  • marine environment
  • nuclear power plants
  • submarines
  • doses
  • validation


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