Milk and other staples like mushrooms and berries are still contaminated in parts of Ukraine by radioactive fallout from Chernobyl, 25 years after the world’s worst nuclear disaster, Greenpeace said on Sunday. The environmental group published findings of a field investigation ahead of a Ukraine-hosted international conference on Chernobyl on April 19. The meeting has taken on added significance since the nuclear crisis in Japan. Ukraine is seeking 600 million euros ($840 million) in extra funding to build a massive new shell over a reactor at the Chernobyl plant which blew up in 1986, spewing radioactive debris across neighboring Belarus and other parts of Europe. The investigation in three parts of Ukraine earlier this month focused on contamination of locally-produced food by caesium-137, a radionuclide carried around the region by wind at the time.