Risks Due to Severe Accidents of Nuclear Power Plants in Europe. Peter Hofer, Iouli Andreev, and Herbert Gohla, Institute of Risk Research, University of Vienna, telephone +43 1 4790094, fax +43 1 4790095, e-mail Risikoforschung@univie.ac.at; Markus Hittenberger and Helga Kromp-Kolb, Institute of Meteorology and Physics, Universität für Bodenkultur, Vienna, telephone +43 1 470582017, fax +43 1 470582060, e-mail imp@mail.boku.ac.at; Wolfgang Kromp, Institute of Risk Research, University of Vienna; and Petra Seibert and Gerhard Wotawa, Institute of Meteorology and Physics, Universität für Bodenkultur, Vienna
The geographical distribution pattern of the nuclear fall-out is highly complex and stochastic in the sense that it is the result of a coincidental combination of radioactive emissions and prevailing weather conditions. Despite of this fact certain features, due to climatological conditions, are more likely to occur and some geographical regions are more affected on the average than others.
Probabilistic deposition patterns of the long-lived radionuclide Cs-137 for different release scenarios of severe accidents in commercial NPPs in Europe are represented in maps. These riskmaps provide a tool to determine which NPPs pose the greatest risk to a given area, e.g. as a basis for the setting of priorities regarding safety upgradings and phase-outs. They make transboundary risk visible and help in defining risk “exporters” and risk “importers”, an aspect that, when negotiating international liability agreements like the Vienna and Paris Convention should be taken into account.
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