The only factual error I see is that you seem to be saying that Chernobyl is in Russia, when it is indeed in Ukraine. Radioactivity was spread across a large part of Europe, including European Russia, but the remaining problems are all centered around the plant itself.
Other than that, I'm not clear on what your point is. If you are thinking, as Road_Runner thinks you are, that we should eliminate nuclear power, frankly I'd love to do so, but Road_Runner's statement is correct. As your map so clearly illustrates, thee are nuclear planets everywhere, and that's because we need them. Exacerbating the issue, there are pushes on to eliminate coal-fired plants as well, which doesn't jibe with eliminating nuclear plants. If we get ride of both, we'll pretty much be returning to the 1800s.