May 11, 2012 – JAPAN – Prof. Yamazaki from Kinki University analyzed the cesium in sea ground of Tokyo bay on 4/2/2012. He found out it increased since last August. The samples were taken at 3 locations in Tokyo bay, near Arakawa River Tokyo and Urayasu Chiba. –Fukushima Diary
Report show levels of radioactive contamination have risen dramatically since 2011.