Skip to Main content Skip to Navigation
Journal articles

Impact of radiocesium contamination in flood sediment deposited after the 2019 typhoon on decontaminated fields of Fukushima Prefecture, Japan

Abstract : Sediment that has deposited after the flood generated by the 2019 typhoon (referred to as Flood Sediment, FS) was collected along two rivers in eastern Fukushima Prefecture, Japan to determine the total and exchangeable radiocesium (137 Cs), and acid-extractable potassium (K) contents. Then, these FS parameters were compared with those of decontaminated soils (DS) in nearby agricultural fields to discuss the potential transfer risk of 137 Cs from rivers to nearby remediated soils. While FS had about four times higher total 137 Cs content, it showed a three-times lower exchangeable 137 Cs content than DS. Furthermore, acid-extractable K referred to as non-exchangeable K (Nex-K) content was high enough to restrict 137 Cs transfer from soil to crops for both FS and DS. From these comparisons, we concluded that deposition of FS onto DS may not increase the transfer of 137 Cs from soil to crops.
Complete list of metadata

https://hal-cea.archives-ouvertes.fr/cea-03627017
Contributor : Olivier Evrard Connect in order to contact the contributor
Submitted on : Friday, April 1, 2022 - 8:11:07 AM
Last modification on : Saturday, April 2, 2022 - 3:39:37 AM
Long-term archiving on: : Saturday, July 2, 2022 - 6:13:25 PM

File

Asano_CRGeosc_2022.pdf
Files produced by the author(s)

Identifiers

Citation

Ikumi Asano, Nodoka Harada #, Atsushi Nakao, O. Evrard, Junta Yanai. Impact of radiocesium contamination in flood sediment deposited after the 2019 typhoon on decontaminated fields of Fukushima Prefecture, Japan. Comptes Rendus. Géoscience, Académie des sciences (Paris), 2022, 354, pp.131-140. ⟨10.5802/crgeos.122⟩. ⟨cea-03627017⟩

Share

Metrics

Record views

17

Files downloads

17