Linking heterogeneous distribution of radiocaesium in soils and pond sediments in the Fukushima Daiichi exclusion zone to mobility and potential bioavailability

Reinoso-Maset, Estela; Brown, Justin; Pettersen, Marit Nandrup; Steenhuisen, Frits; Tetteh, Abednego; Wada, Toshihiro; Hinton, Thomas G.; Salbu, Brit; Lind, Ole Christian

doi:10.1016/j.jenvrad.2019.106080

Cited by 17 publications

(4 citation statements)

References 32 publications

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“…Their CRwo-soil was lower than our AM CR value of 0.5, but within our standard deviation (± 0.8). The lower AM CRwo-soil derived from Kubota et al (2015) could merely reflect the large variation in CRwo-soil, or may be due to the reduced bioavailability of Cs isotopes locked into glassy particles found in highly contaminated areas closer to the FDNPP (Johansen et al, 2020;Reinoso-Maset et al, 2020).…”

Section: Reference Rat Crwo-soil Valuesmentioning

confidence: 96%

Radiocesium concentration ratios and radiation dose to wild rodents in Fukushima Prefecture

Anderson

Beresford

Ishiniwa

et al. 2021

Journal of Environmental Radioactivity

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Section: Reference Rat Crwo-soil Valuesmentioning

confidence: 96%

Radiocesium concentration ratios and radiation dose to wild rodents in Fukushima Prefecture

Anderson

Beresford

Ishiniwa

et al. 2021

Journal of Environmental Radioactivity

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“…The speciation pattern of Cs in our simulant was similar to that of soils described in previous reports. 11 The organic acids, other than oxalic acid, could elute Cs species of F1, 2, and 3 under weak acidic to weak basic conditions (i.e., pH > pKa1) (Fig. 2).…”

Section: Elution Behavior Of Cs With Organic Acids From Simulated Con...mentioning

confidence: 97%

“…The different soil samples have different soil compositions, depending on the sampling site, and this greatly affects the adsorption and dissolution behaviors of Cs. 11 Because the chemical species of Cs are different, depending on the soil components in which they are adsorbed, an effective treatment method should be selected based on the soil composition. Other factors affecting the removal effectiveness of Cs are whether the soil sample is simulated contaminated soil with non-radioactive 133 Cs or actual contaminated soil with radioactive 134,137 Cs and whether the treatment is laboratory scale (g scale) or large scale (kg scale).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Removal Behavior of Cesium in Contaminated Soil Based on Speciation Analysis

et al. 2020

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The removal efficiency of Cs from contaminated soil depends on its chemical species bound with the soil components. Therefore, in this study, we observed the elution behavior of Cs based on speciation analysis in a Cs removal experiment conducted on contaminated soils. The treatment method was optimized using simulated contaminated soil and applied to actual contaminated soil on a large scale as well. The elution rate of Cs was approximately 50% or more in both actual and simulated contaminated soil using the optimized treatment method. From the obtained results, a robust treatment method using an eluting reagent and a magnetic adsorbent with low energy costs is proposed. Additionally, the usefulness of speciation analysis in decontamination studies was confirmed.

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“…The fact that the fraction of CsMPs in the deposition significantly varies in different locations makes it difficult to model the radiocesium behavior. As a result, uncertainty in the prediction of the mobility and bioavailability of radiocesium in the soil–water environment and its dynamics is increasing [ 48 ].…”

Section: Speciation Of Radiocesium and Its Transformation In Soil–wat...mentioning

confidence: 99%

Fukushima and Chernobyl: Similarities and Differences of Radiocesium Behavior in the Soil–Water Environment

Konoplev

2022

Toxics

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In the wake of Chernobyl and Fukushima accidents, radiocesium has become a radionuclide of most environmental concern. The ease with which this radionuclide moves through the environment and is taken up by plants and animals is governed by its chemical forms and site-specific environmental characteristics. Distinctions in climate and geomorphology, as well as 137Cs speciation in the fallout, result in differences in the migration rates of 137Cs in the environment and rates of its natural attenuation. In Fukushima areas, 137Cs was strongly bound to soil and sediment particles, with its bioavailability being reduced as a result. Up to 80% of the deposited 137Cs on the soil was reported to be incorporated in hot glassy particles (CsMPs) insoluble in water. Disintegration of these particles in the environment is much slower than that of Chernobyl-derived fuel particles. The higher annual precipitation and steep slopes in Fukushima-contaminated areas are conducive to higher erosion and higher total radiocesium wash-off. Among the common features in the 137Cs behavior in Chernobyl and Fukushima are a slow decrease in the 137Cs activity concentration in small, closed, and semi-closed lakes and its particular seasonal variations: increase in the summer and decrease in the winter.

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Linking heterogeneous distribution of radiocaesium in soils and pond sediments in the Fukushima Daiichi exclusion zone to mobility and potential bioavailability

Abstract: O. C. (2020). Linking heterogeneous distribution of radiocaesium in soils and pond sediments in the Fukushima Daiichi exclusion zone to mobility and potential bioavailability.

Cited by 17 publications

References 32 publications

Radiocesium concentration ratios and radiation dose to wild rodents in Fukushima Prefecture

Radiocesium concentration ratios and radiation dose to wild rodents in Fukushima Prefecture

Evaluation of Removal Behavior of Cesium in Contaminated Soil Based on Speciation Analysis

Fukushima and Chernobyl: Similarities and Differences of Radiocesium Behavior in the Soil–Water Environment

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