Library – Environmental Radioactivity and Radiation in Japan

You can check materials and data on environmental radioactivity.

Radioactivity Survey on Nuclear Powered Warships

The Secretariat of the Nuclear Regulation Authority conducts surveys on radioactivity levels at ports nuclear powered warships call in, with the cooperation of relevant entities including local governments, the Japan Coast Guard, and the Fisheries Agency. Here, you can check the survey results.

Nuclear Powered Warship Departure and Post-departure Survey

You can check the results of radioactivity surveys conducted after a nuclear powered warship departs a port.

Periodic Surveys on Nuclear Powered Warships

You can check the results of radioactivity surveys conducted quarterly at ports nuclear powered warships call in.

Results of Analyses in Radioactivity Surveys on Nuclear Powered Warships

Results of analyses in radioactivity surveys on nuclear powered warships are listed here by fiscal year.

The Series of Environmental Radioactivity Measuring Methods

The Series of Environmental Radioactivity Measuring Methods is available here for downloading in PDF format.

Environmental Radioactivity Survey Reports

Reports of environmental radioactivity surveys are published.