Study of soil particles contaminated with radioactive cesium in pond sediment

The Fukushima Daiichi Nuclear Power Plant accident caused by the tsunami following the Great East Japan Earthquake in March 2011 resulted in contamination in Namie and Iitate, located in Fukushima Prefecture. These villages are in mountainous areas where achieving decontamination by removing soil is...

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Autores principales:	Tohru Ohnuma, Keizo Ishii
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2019
Materias:	cesium radioisotopes cesium 137 fukushima daiichi npp contaminated soil radioactivity distribution pond sediment rainfall erosion Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/c9415d093dd34bd3ba19c7375a35059b
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spelling	oai:doaj.org-article:c9415d093dd34bd3ba19c7375a35059b2021-11-04T15:51:56ZStudy of soil particles contaminated with radioactive cesium in pond sediment2331-191610.1080/23311916.2019.1662573https://doaj.org/article/c9415d093dd34bd3ba19c7375a35059b2019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/23311916.2019.1662573https://doaj.org/toc/2331-1916The Fukushima Daiichi Nuclear Power Plant accident caused by the tsunami following the Great East Japan Earthquake in March 2011 resulted in contamination in Namie and Iitate, located in Fukushima Prefecture. These villages are in mountainous areas where achieving decontamination by removing soil is difficult. However, washout by rain is expected. The mountainous land is eroded by rainfall, so the soil will flow out into rivers and ponds. We assumed that polluted soils would have accumulated in ponds, and investigated the sediment to evaluate the mountain decontamination ability of rainfall. Although the surface of the pond sediment was radioactive, highly contaminated layers that were expected to have formed due to heavy rain immediately after the accident were not found. We recognized that the separation of the contaminated soils based on the particulate mean size was carried out in the pond.Tohru OhnumaKeizo IshiiTaylor & Francis Grouparticlecesium radioisotopescesium 137fukushima daiichi nppcontaminated soilradioactivity distributionpond sedimentrainfall erosionEngineering (General). Civil engineering (General)TA1-2040ENCogent Engineering, Vol 6, Iss 1 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	cesium radioisotopes cesium 137 fukushima daiichi npp contaminated soil radioactivity distribution pond sediment rainfall erosion Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	cesium radioisotopes cesium 137 fukushima daiichi npp contaminated soil radioactivity distribution pond sediment rainfall erosion Engineering (General). Civil engineering (General) TA1-2040 Tohru Ohnuma Keizo Ishii Study of soil particles contaminated with radioactive cesium in pond sediment
description	The Fukushima Daiichi Nuclear Power Plant accident caused by the tsunami following the Great East Japan Earthquake in March 2011 resulted in contamination in Namie and Iitate, located in Fukushima Prefecture. These villages are in mountainous areas where achieving decontamination by removing soil is difficult. However, washout by rain is expected. The mountainous land is eroded by rainfall, so the soil will flow out into rivers and ponds. We assumed that polluted soils would have accumulated in ponds, and investigated the sediment to evaluate the mountain decontamination ability of rainfall. Although the surface of the pond sediment was radioactive, highly contaminated layers that were expected to have formed due to heavy rain immediately after the accident were not found. We recognized that the separation of the contaminated soils based on the particulate mean size was carried out in the pond.
format	article
author	Tohru Ohnuma Keizo Ishii
author_facet	Tohru Ohnuma Keizo Ishii
author_sort	Tohru Ohnuma
title	Study of soil particles contaminated with radioactive cesium in pond sediment
title_short	Study of soil particles contaminated with radioactive cesium in pond sediment
title_full	Study of soil particles contaminated with radioactive cesium in pond sediment
title_fullStr	Study of soil particles contaminated with radioactive cesium in pond sediment
title_full_unstemmed	Study of soil particles contaminated with radioactive cesium in pond sediment
title_sort	study of soil particles contaminated with radioactive cesium in pond sediment
publisher	Taylor & Francis Group
publishDate	2019
url	https://doaj.org/article/c9415d093dd34bd3ba19c7375a35059b
work_keys_str_mv	AT tohruohnuma studyofsoilparticlescontaminatedwithradioactivecesiuminpondsediment AT keizoishii studyofsoilparticlescontaminatedwithradioactivecesiuminpondsediment
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Study of soil particles contaminated with radioactive cesium in pond sediment

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