09 Mar 2021
09 Mar 2021
Radionuclide contamination in flood sediment deposits in the coastal rivers draining the main radioactive pollution plume of Fukushima Prefecture, Japan (2011–2020)
- 1Laboratoire des Sciences du Climat et de l'Environnement (LSCE/IPSL), Unité Mixte de Recherche 8212 (CEA/CNRS/UVSQ), Université Paris-Saclay, Gif-sur-Yvette, France
- 2Georges Lemaître Centre for Earth and Climate Research, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
- 3Alberta Environment and Parks (AEP), Calgary, Alberta, Canada
- 4Centre for Research in Isotopes and Environmental Dynamics (CRIED), Tsukuba University, Tsukuba, Japan
- 5Institute of Environmental Radioactivity (IER), University of Fukushima, Fukushima, Japan
- 6Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
- 7Bureau de Recherches Géologiques et Minières (BRGM), Département Risques et Prévention, Orléans, France
- 8Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV, SRTE/LRTA, SAME/LERCA, BP 3, 13115, Saint-Paul-lez-Durance, France
- 1Laboratoire des Sciences du Climat et de l'Environnement (LSCE/IPSL), Unité Mixte de Recherche 8212 (CEA/CNRS/UVSQ), Université Paris-Saclay, Gif-sur-Yvette, France
- 2Georges Lemaître Centre for Earth and Climate Research, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
- 3Alberta Environment and Parks (AEP), Calgary, Alberta, Canada
- 4Centre for Research in Isotopes and Environmental Dynamics (CRIED), Tsukuba University, Tsukuba, Japan
- 5Institute of Environmental Radioactivity (IER), University of Fukushima, Fukushima, Japan
- 6Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
- 7Bureau de Recherches Géologiques et Minières (BRGM), Département Risques et Prévention, Orléans, France
- 8Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV, SRTE/LRTA, SAME/LERCA, BP 3, 13115, Saint-Paul-lez-Durance, France
Abstract. Artificial radionuclides including radiocesium (134Cs and 137Cs) and radiosilver (110mAg) were released into the environment following the Fukushima Dai-ichi Nuclear Power Plant accident in March 2011. These particle-bound substances deposited on soils of Northeastern Japan located predominantly within a ~3000 km2 radioactive fallout plume and drained by several coastal rivers to the Pacific Ocean. The current dataset that can be accessed at https://doi.pangaea.de/10.1594/PANGAEA.928594 compiles gamma-emitting artificial radionuclide activities measured in 782 sediment samples collected from 27 to 71 locations during 16 fieldwork campaigns conducted in Japan between November 2011 and November 2020 in river catchments draining the main radioactive plume. This database may be useful to evaluate and anticipate the post-accidental redistribution of radionuclides in the environment and for the spatial validation of models simulating the transfer of radiocesium across continental landscapes.
Olivier Evrard et al.
Status: open (until 20 May 2021)
Olivier Evrard et al.
Olivier Evrard et al.
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