Radioactivity in agricultural products in fukushima

Abstract

The radioactivity measurements performed by Fukushima local-government, from March 2011 to March 2012, is presented. Agricultural products (cereals, vegetables, and fruit trees), forest products (mushrooms and edible wild plants), marine products (saltwater and freshwater fish), and stock farm products (beef, pork, and raw milk) were measured for radioactivity before shipment. In March 2011, 19% of the samples contained >500 Bq/kg of radiocesium, followed by 12% in April, 10% in May, 7% in June, and 1-2% after July. Only 3% of the samples investigated contained >500 Bq/kg, whereas the remaining 97% contained less than the provisional regulation level of 500 Bq/kg in 2011.