Abstract
This paper is focused on the testing of a methodology developed for nuclear risk and vulnerability assessment, and probabilistic evaluation of the long-term atmospheric transport and deposition patterns for radioactive pollutants from selected nuclear risk sites in the Euro-Arctic region. A combination of models (3-D trajectory, DERMA, and HIRLAM) was used to simulate such transport, dispersion, and deposition of 137Cs for a one-day hypothetical release. The ranking of the potential impact on Copenhagen, Denmark from selected sites showed that for concentration and dry deposition the order of such ranking is identical. If wet deposition is accounted for, the ranks can change significantly at the mesoscale.
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