1:45 PM - 1:50 PM
Session information
[J] Oral
M (Multidisciplinary and Interdisciplinary) » M-AG Applied Geosciences
[M-AG34] Radioisotope migration: Development from Environmental Dynamics Research on the F1NPS Accident
Thu. May 29, 2025 1:45 PM - 3:15 PM 105 (International Conference Hall, Makuhari Messe)
convener:Daisuke Tsumune(University of Tsukuba), Naofumi Akata(Hirosaki University), Hiroaki Kato(Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba), Shigeyoshi Otosaka(Atmosphere and Ocean Research Institute, The University of Tokyo), Chairperson:Shigeyoshi Otosaka(Atmosphere and Ocean Research Institute, The University of Tokyo), Daisuke Tsumune(University of Tsukuba)
13 years have passed since the accident at the Tokyo Electric Power Company (TEPCO) Fukushima Daiichi Nuclear Power Station (F1NPS), which was triggered by the Great East Japan Earthquake and tsunami. The environmental dynamics process of radionuclides released by the F1NPS has been revealed, but there are still many issues to be solved, such as the migration process across sphere. It is important to understand the chemical element processes in the migration process across the sphere for new development on the environmental dynamics study of the F1NPS accident. Furthermore, in addition to radioactive cesium, which has been the main target, it is necessary to combine the understanding of the dynamics of rare long-lived nuclides and natural radioactive nuclides, and to organize them as permanently available radioisotope tracers. In addition, it is desirable to expand the sphere and the time scale by collaborating with research on geological disposal of radioactive waste. More scientific understanding and discussion is desired for the ongoing oceanic discharge of ALPS treated water from the F1NPS.
In this session, we would like to summarize our research activities to date and deepen the discussion on cross-disciplinary research issues for new developments in the study of environmental dynamics of the Fukushima nuclear accident.
1:50 PM - 2:05 PM
[MAG34-01] New Insights into the Dissolution Mechanism of Dissolved Cs-137 in Headwater Catchments
★Invited Papers
*Yuichi Onda1, Kosuke Tomura1, Yasunori Igarashi1, Yutaro Nagata1, Naoyuki Wada1, Junko Takahashi1, Aya Sakaguchi1, SHAOYAN FAN2 (1.Center for Research in Radiation, Isotopes and Earth System Sciences, University of Tsukuba, 2.Fukushima Prefectural Center for Environmental Creation)
2:05 PM - 2:20 PM
*Hiroaki Kato1, Haruki Nakada1, Hao Wang1, Yuichi Onda1 (1.Center for Research in Radiation, Isotopes and Earth System Sciences, University of Tsukuba)
2:20 PM - 2:35 PM
*Yutaro Nagata1, Yuichi Onda2, Tsubasa Hiramatsu3, Kosuke Tomura1, Koichi Sakakibara3, Junko Takahashi2 (1.Program of Geoscience, University of Tsukuba, 2.University of Tsukuba Center for Research in Radiation, Isotopes, and Earth System Sciences, 3.Department of Environmental Sciences, Faculty of Science, Shinshu University)

2:35 PM - 2:50 PM
*Yusei Uehara1, Yuichi Onda2, Junko Takahashi2, Miyu Nakanishi1, Yupan Zhang2, Shiori Takamura1 (1.Program of Geoscience, University of Tsukuba, 2.Center for research in radiations, isotopes, and earth system sciences, University of Tsukuba)

2:50 PM - 3:05 PM
*Yasunori Igarashi1, Yuichi Onda1, Jim Smith2 (1.Fukushima University, 2.University of Portsmouth)
3:05 PM - 3:15 PM