Radiation monitoring is conducted in accordance with the Comprehensive Radiation Monitoring Plan (published on August 2, 2011 and last revised on March 21, 2024), which was devised by the central government and Fukushima Prefecture after the nuclear accident. It includes measuring radiation levels in the soil, water, atmosphere, as well as wildlife, plant life, food products, and farmlands.

Ambient dose rates are measured by portable monitoring posts and real-time dosimetry systems. The measurement results are published on the Radiation Monitoring Information Sharing and Publication System website by the Nuclear Regulation Authority every 10 minutes.

Reference Radiation Monitoring Information Sharing and Publication System website by the Nuclear Regulation Authority