Radioactivity from a damaged nuclear plant may have contaminated wider areas of Japan than previously thought, a study by a team of researchers showed Tuesday. [...]

Radioisotopes of elements including caesium, tellurium and iodine were blown more than 500 kilometres from the Fukushima Daiichi Nuclear Power Station, including to the northern island of Hokkaido and western parts of the country, the team said. [...]

Source: enenews.com