Abstract
Cadmium is supplied to Southern Norway in considerable amounts by atmospheric transport from other areas of Europe. This has caused a very marked increase of Cd levels in the natural environment in this area. Evidence of the main source areas is inferred from air concentration studies coupled to trajectory analysis. The extent of contamination is indicated from deposition studies and investigations of Cd in peat cores and surface soils, including soil profile distributions. The Cd content of vascular plants is substantially higher in Southern Norway than in areas farther north and further transfer in terrestrial food chains is occurring and may eventually lead to increased human exposure.

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