just as a small note. Even in Germany we can still see some small effects of Chernobyl. In certain parts of Bavaria (and a few other places) there still can be found small amounts of cesium in the muscles of boars and other radioactive particles in mushrooms and it is still considered a risk to collect them in some areas simply because those isotopes/particles remain so long in the food chain. And that still more then 25 years after Chernobyl. I don't want to imagine how the situation has to be in some parts of the Ukraine and other former Soviet states which have seen much higher dozes of pollution.