Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 329, Issue 1, Pages 213-224Publisher
SPRINGER
DOI: 10.1007/s10967-021-07749-1
Keywords
Fukushima Dai-ichi nuclear power plant accident; Cesium; Forest soils; Organic matter; Sorption and desorption; Vermiculite
Funding
- JSPS KAKENHI [18K14495]
- Grants-in-Aid for Scientific Research [18K14495] Funding Source: KAKEN
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Through sorption experiments with stable cesium, we found that bark and wattle tannin sorbed relatively large amounts of Cs, while samples containing clay minerals showed much higher Cs sorption. Desorption experiments suggested that Cs on the organic matter samples were relatively mobile.
We conducted sorption experiments with stable cesium (Cs-133) solution in different organic matter samples, aiming to understand the sorption of radiocesium (Cs-134 and Cs-137) in the initial throughfall by fresh plant residues (e.g., needles, wood, and bark from Japanese cedar trees) in the Oi horizon in forests in Fukushima. Among the organic matter samples, bark and wattle tannin sorbed relatively large amounts of Cs, whereas wood and cellulose powder sorbed small amounts. In contrast, samples containing clay minerals showed much higher Cs sorption. We also conducted desorption experiments, and suggested that Cs on the organic matter samples were relatively mobile.
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