Condition Selection You can search for data related to the accident at the TEPCO Fukushima Daiichi Nuclear Power Plant. Survey SampleMandatory Select Fallout or Inland water. Survey Sample Fallout Inland water Survey PeriodMandatory Please specify the survey period to search. Year : 2011 Month : 3 4 5 6 7 8 9 10 11 12 to Month : 3 4 5 6 7 8 9 10 11 12 Survey RegionMandatory You can select any prefectures (multiple choice allowed). You can also select “Nationwide” to see data for the whole country. Survey Region Nationwide Hokkaido & Tohoku Region Hokkaido Aomori Iwate Miyagi Akita Yamagata Fukushima Kanto Region Ibaraki Tochigi Gunma Saitama Chiba Tokyo Kanagawa Chubu Region Niigata Toyama Ishikawa Fukui Yamanashi Nagano Gifu Shizuoka Aichi Kinki Region Mie Shiga Kyoto Osaka Hyogo Nara Wakayama Chugoku Region Tottori Shimane Okayama Hiroshima Yamaguchi Shikoku Region Tokushima Kagawa Ehime Kochi Kyushu & Okinawa Region Fukuoka Saga Nagasaki Kumamoto Oita Miyazaki Kagoshima Okinawa Survey NuclideMandatory Please select the nuclides to search. You can select multiple nuclides. Survey Nuclide I-131 Cs-134 Cs-137 Radioactive Cs Applicable data: Please select mandatory items Searching applicable data Search for the selected conditions Clear all fields Return to Archive