220 Bq/Kg of cesium was measured from Shiitake mushroom cultivated indoor on 5/14/2012.
It was produced in Sammu city Chiba.
In Chiba, Shiitake mushroom cultivated outdoor is banned to sell in 8 cities of Chiba, but this is the first time for them to measure cesium more than the safety limit of 100Bq/kg from Shiitake mushroom cultivated indoor.
Chiba prefecture assumes it is from the contaminated bed log purchased from outside of the prefecture.
Iori Mochizuki