Radionuclide contamination in flood sediment deposits in the coastal rivers draining the main radioactive pollution plume of Fukushima Prefecture, Japan (2011–2020)
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Published:2021-06-07
Issue:6
Volume:13
Page:2555-2560
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ISSN:1866-3516
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Container-title:Earth System Science Data
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language:en
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Short-container-title:Earth Syst. Sci. Data
Author:
Evrard OlivierORCID, Chartin Caroline, Laceby J. Patrick, Onda YuichiORCID, Wakiyama Yoshifumi, Nakao AtsushiORCID, Cerdan OlivierORCID, Lepage HugoORCID, Jaegler Hugo, Vandromme RosalieORCID, Lefèvre Irène, Bonté Philippe
Abstract
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 north-eastern Japan, located
predominantly within a ∼3000 km2 radioactive fallout plume and
drained by several coastal rivers to the Pacific Ocean. The current dataset
(Evrard et al., 2021), which can be accessed at https://doi.org/10.1594/PANGAEA.928594,
compiles gamma-emitting artificial radionuclide activities measured in 782
sediment samples collected from 27 to 71 locations across catchments draining
∼6450 km2 during 16 fieldwork campaigns. These campaigns were 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.
Publisher
Copernicus GmbH
Subject
General Earth and Planetary Sciences
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