https://ajw.asahi.com/article/0311disaster/fukushima/AJ201207250060
Radioactive strontium from Fukushima disaster found in 10 prefectures
July 25, 2012
THE ASAHI SHIMBUN
Radioactive strontium-90 from the crippled Fukushima No. 1 nuclear power plant has been detected for the first time in 10 prefectures outside Miyagi and Fukushima, the science ministry said July 24.
The highest reading was in Ibaraki Prefecture and nearly matched the maximum level (...)