Experts say minuscule amounts of fallout from a damaged power plant in Japan have reached Iceland and are expected in France, but don't pose health risks.
Japan's Fukushima Dai-ichi nuclear complex was hit March 11 by a huge earthquake and massive tsunami, causing it to release radiation, and sparking fears of widespread contamination.
`Austria's Central Institute for Meteorology and Geodynamics, citing data from the Comprehensive Test Ban Treaty Organization, said Monday that "extremely diluted" radioactivity reached Iceland 72 hours ago.
France's nuclear safety body, meanwhile, said very weakly contaminated air is expected to reach France on Wednesday.
Both stressed the traces are tiny and don't pose any health risks.