Investigation on the radiocesium transfer to rice plants near the water inlet of paddy fields via an in situ experiment using non-contaminated soil

An in situ model paddy field experiment was conducted using non-contaminated soil to identify factors that locally increase the radiocesium activity concentrations in rice near the water inlet of paddy fields. The results demonstrated that irrigation water intake reduced exchangeable potassium conce...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2022-09, Vol.331 (9), p.4077-4086
Main Authors: Klevtsova, Anastasiia, Inaba, Rinji, Takahashi, Moeka, Suzuki, Yoshimasa, Miyazu, Susumu, Suzuki, Kazuki, Harada, Naoki, Nogawa, Norio, Nishikiori, Tatsuhiro, Kubota, Tomijiro, Yoshikawa, Natsuki
Format: Article
Language:English
Subjects:
Analysis
Cesium 137
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Investigations
Irrigation
Irrigation water
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Potassium
Soil contamination
Soil water
Soils
Solid suspensions
Water
Water intakes
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Summary:An in situ model paddy field experiment was conducted using non-contaminated soil to identify factors that locally increase the radiocesium activity concentrations in rice near the water inlet of paddy fields. The results demonstrated that irrigation water intake reduced exchangeable potassium concentration and increased radiocesium activity concentration in the soil near the water inlet; thus, the radiocesium activity concentration in rice was negatively correlated with the former and positively with the latter. Exchangeable potassium flushing and deposition of suspended solids in the soil owing to irrigation water intake facilitated the transfer of radiocesium to rice plants near the water inlet.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-022-08448-1