Physical properties, structure, and shape of radioactive Cs from the Fukushima Daiichi Nuclear Power Plant accident derived from soil, bamboo and shiitake mushroom measurements

We conducted an elution experiment with contaminated soils using various aqueous reagent solutions and autoradiography measurements of contaminated bamboo shoots and shiitake mushrooms to determine the physical and chemical characteristics of radioactive Cs from the Fukushima Daiichi Nuclear Power P...

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Bibliographic Details
Published in:Journal of environmental radioactivity 2015-01, Vol.139, p.234-239
Main Authors: Niimura, Nobuo, Kikuchi, Kenji, Tuyen, Ninh Duc, Komatsuzaki, Masakazu, Motohashi, Yoshinobu
Format: Article
Language:English
Subjects:
Accidental contamination
Accidents
Adsorption
Autoradiography
Bamboo
Cesium - chemistry
Cesium - metabolism
Cesium Radioisotopes - chemistry
Cesium Radioisotopes - metabolism
Daiichi Nuclear Power Plant
Fukushima Nuclear Accident
Granular Fukushima
Japan
Media
Nuclear accidents
Nuclear power generation
Nuclear power plants
Poaceae - chemistry
Poaceae - metabolism
Radiation Monitoring
Radioactive cesium
Reagent solution
Shiitake Mushrooms - chemistry
Shiitake Mushrooms - metabolism
Soil
Soil (material)
Soil - chemistry
Soil Pollutants, Radioactive - chemistry
Soil Pollutants, Radioactive - metabolism
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Summary:We conducted an elution experiment with contaminated soils using various aqueous reagent solutions and autoradiography measurements of contaminated bamboo shoots and shiitake mushrooms to determine the physical and chemical characteristics of radioactive Cs from the Fukushima Daiichi Nuclear Power Plant accident. Based on our study results and data in the literature, we conclude that the active Cs emitted by the accident fell to the ground as granular non-ionic materials. Therefore, they were not adsorbed or trapped by minerals in the soil, but instead physically adhere to the rough surfaces of the soil mineral particles. Granular Cs* can be transferred among media, such as soils and plants. The physical properties and dynamic behavior of the granular Cs* is expected to be helpful in considering methods for decontamination of soil, litter, and other media.
ISSN:0265-931X
1879-1700
DOI:10.1016/j.jenvrad.2013.12.020