JpGU Meeting 2019
Session outline| Multidisciplinary and Interdisciplinary (M) | ||
|---|---|---|
| Session Sub-category | Applied Geosciences(AG) | |
| Session ID | M-AG41 | |
| Title | Dynamics of radionuclides emitted from Fukuchima Dai-ichi Nuclear Power Plant in the environment | |
| Short Title | Radionuclides in the earth environment | |
| Main Convener | Name | Yoshio Takahashi |
| Affiliation | Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo | |
| Co-Convener 1 | Name | Kazuyuki Kita |
| Affiliation | Faculty of Science, Ibaraki University | |
| Co-Convener 2 | Name | Yuichi Onda |
| Affiliation | Center for Research on Isotopes and Environmental Dynamics, University of Tsukuba | |
| Co-Convener 3 | Name | Daisuke Tsumune |
| Affiliation | Central Research Institute of Electric Power Industry | |
| Session Language | J | |
| Scope | The Great East Japan Earthquake caused the severe accident in TEPCO Fukushima dai-ichi nuclear power plant (FDNPP), leading to emission of huge amount of radionuclides to the environment. They have been transported and diffused by atmospheric motion, depositing them to soil and vegetation. Deposited radionuclides are dynamically shifted in the earth environment; atmosphere, soil, inland water, ocean, and ecosystem. To understand this dynamic shift in the environment and for the long-term prediction of the disaster by the radionuclides, investigation and discussion based on not only the earth sciences including ecology but also on the radiochemistry and other related sciences. In this session, various efforts to understand the dynamic behavior of radionuclides emitted from FDNPP accident in the earth system as well as to predict their influences on the environment. It is expected that this session will offer a good opportunity to discuss radionuclides in the earth environment from wide aspect and to exchange information in various research fields. | |
| Presentation Format | Oral and Poster presentation | |
| Invited Authors | Daisuke Tsumune (Central Research Institute of Electric Power Industry) Kazuyuki Kita (Faculty of Science, Ibaraki University) Yuichiro Kumamoto (Japan Agency for Marine-Earth Science and Technology) Shota Kambayashi (National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology) Junko Takahashi (Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba) Taiga Okumura (The University of Tokyo) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 26 PM1 | ||||
| 13:45 - 14:00 | MAG41-01 | Investigation on basic physical and chemical properties of radio-Cs micro particles | Yasuhito Igarashi | |
| 14:00 - 14:15 | MAG41-02 | Dynamics of radioactive microparticles released from the Fukushima nuclear plant: heating and dissolution characteristics | Taiga Okumura | |
| 14:15 - 14:30 | MAG41-03 | Dynamics of atmospheric 131I just after the Fukushima accident related to 137Cs by analysis of published data | Haruo Tsuruta | |
| 14:30 - 14:45 | MAG41-04 | Distribution of 237Np and Plutonium isotope in terrestrial environment in Fukushima Prefecture | Miho Fukuda | |
| 14:45 - 15:00 | MAG41-05 | Study on deposition of 134Cs and 137Cs from atmosphere to freshwater environment using a mountainous lake, Lake Haruna in Gunma Prefecture, Japan | Seiya Nagao | |
| 15:00 - 15:15 | MAG41-06 | Spatial variability of radiocesium deposition through the tree canopy via branchflow and stemflow | Zul Hilmi Saidin | |
| Oral Presentation May 26 PM2 | ||||
| 15:30 - 15:45 | MAG41-07 | Temporal changes in vertical distributions of radiocesium in forest soils after the FDNPP accident | Junko Takahashi | |
| 15:45 - 16:00 | MAG41-08 | Change of sediment sources in suspended sediments due to surface decontamination in the Niida river catchment area affected by the Fukushima Daiichi nuclear power plant accident | Yuichi Onda | |
| 16:00 - 16:15 | MAG41-09 | Neasrshore transport of suspended radiocesium In the Fuksima Coast derived from Niida River induced by Typhoon Wipha | Natsuki Tokunaga | |
| 16:15 - 16:30 | MAG41-10 | Particle size distribution and radiocesium concentration in suspended particles within the high turbidity layer at near sea bottom off Fukushima prefecture | Hideki Kaeriyama | |
| 16:30 - 16:45 | MAG41-11 | Fukushima-derived radiocesium in the subarctic region of the North Pacific Ocean in the summer of 2017 | Yuichiro Kumamoto | |
| 16:45 - 17:00 | MAG41-12 | Temporal and spatial variations of radiocaesium in the East China Sea and Sea of Japan until 2018 | Michio Aoyama | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 26 PM3 | |||
| MAG41-P01 | Discovering U particle with Zr from CsMP emitted from Unit 1 of FDNPP using synchrotron radiation X-ray analyses | Hikaru Miura | |
| MAG41-P02 | Atmospheric re-emission of radio-cesium with bioaerosols and trial for estimateing their emission flux | Kazuyuki Kita | |
| MAG41-P03 | The effect of canopy interception processes on radiocesium and dissolved matter concentrations in throughfall | Tomoki Shinozuka | |
| MAG41-P04 | Effects of RCs concentration and dissolved organic matter on RCs migration in soil under flowing condition | Takahiro Tatsuno | |
| MAG41-P05 | Behavior of dissolved radiocesium in the decay degree of organic matter of deciduous broad-leaved trees | Yoshito Sasaki | |
| MAG41-P06 | Effect of Coarse Organic Matter on the Dissolved Radioactive Cesium Concentration in Stream Water from headwater catchment | Satoru Akaiwa | |
| MAG41-P07 | Eight-year monitoring study of radiocesium transfer in forest environments after the FDNPP accident | Hiroaki Kato | |
| MAG41-P08 | Seasonal change of radiocaesium and its factor in the forest catchment contaminated by the Fukushima Dai-ichi Nuclear Power Station Accident | Shota Kambayashi | |
| MAG41-P09 | Research of discharge radioactive Cs-bearing microparticles from a small forested catchment | Satoshi Hadano | |
| MAG41-P10 | Estimating impacts of direct release and riverine discharge on oceanic 137Cs derived from the Fukushima Dai-ichi Nuclear Power Plant accident by an regional ocean model | Daisuke Tsumune | |
| MAG41-P11 | FNPP1 accident derived radiocaesium and tritium in Fukushima coast through the end of 2018 | Michio Aoyama | |
| MAG41-P12 | Radiocesium in the swash zones off the coast of the Japan Sea | Hyoe Takata | |
| MAG41-P13 | Numerical simulation of Cs-137 activity in the North Pacific using two atmospheric deposition fluxes estimated by atmospheric chemical transport models | Tsubono Takaki | |
| MAG41-P14 | Seasonal deposition of radiocesium in wooden houses from summer to winter seven years after the Fukushima nuclear accident | Ryo Takakura | |