Radioactive Cesium (Fukushima Prefecture)

In order to promote future agricultural activities at farmland in Fukushima Prefecture, which was severely affected by radioactive materials due to the accident at Tokyo Electric Power Company (TEPCO)'s Fukushima Daiichi NPS, measurements of radioactive materials in farmland soil have been conducted continuously. The above map shows estimated radioactive cesium concentrations in farmland soil based on the results of the measurement conducted at 324 locations in Fukushima Prefecture in FY2022 (values are converted into those as of October 21, 2022).

In this farmland soil survey, soil to a depth of approx. 15 cm from the ground surface or a depth to be plowed was collected as samples in consideration of the depth of soil wherein radioactive materials are turned over in cultivation and in which crops take root.

• Included in this reference material on March 31, 2013
• Updated on March 31, 2025