I wrote:
> Local radioactivity in Sapporo has risen significantly above normal > background, sometimes an order of magnitude. Not enough to be dangerous but > enough to measure easily. > I should have said "local radioactivity has at times risen . . ." It is not permanent. I think it is back to normal. The same thing has been reported in the news for Tokyo. This must be from short-lived isotopes. Here is an article about P.M. Kan's speech, which was broadcast while I was chatting with Mizuno: http://online.wsj.com/article/SB10001424052748703864204576314180622573402.html - Jed
