2011 Tōhoku earthquake and tsunami
It was reported that radioactive iodine was detected in the tap water in Fukushima, Tochigi, Gunma, Tokyo, Chiba, Saitama, and Niigata, and radioactive caesium in the tap water in Fukushima, Tochigi and Gunma. Radioactive caesium, iodine, and strontium were also detected in the soil in some places in Fukushima. There may be a need to replace the contaminated soil. Many radioactive hotspots were found outside the evacuation zone, including Tokyo. Food products were also found contaminated by radioactive matter in several places in Japan. On 5 April 2011, the government of the Ibaraki Prefecture banned the fishing of sand lance after discovering that this species was contaminated by radioactive caesium above legal limits. As late as July 2013 slightly elevated levels of radioactivity were found in beef on sale at Tokyo markets.
Iodane
(Diacetoxyiodo)benzene, "phenyliodine diacetate", "iodosobenzene diacetate", or "PIDA" is an organic reagent used as an oxidizing agent. It is a versatile reagent that can be used for cleaving glycols and α-hydroxy ketones and a variety of other reactions. Classical organic procedures exist for the preparation of (diacetoxyiodo)benzene from peracetic acid and acetic acid, which was also first prepared by Willgerodt.