– 1,526 Bq/Kg of cesium from Shiitake mushroom sold at a supermarket (Fukushima Diary, Feb. 7, 2012):
An independent researcher measured 1526 Bq/Kg of cesium from Shiitake mushroom.
It was sold at a supermarket in Yokohama.
It’s only labelled as “From Japan”.
The processing factory is here.