Dose estimation in the recycling of removed soil for land reclamation

Dose estimation for workers and the public was conducted to use the recycled soil removed from the Fukushima prefecture for land reclamation. The land was availed to the public as a greenery-covered area. In the case of revegetation with trees, the absorption of Cs by the trees was considered. The e...

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Autores principales:	Asako SHIMADA, Hiromi NEMOTO, Takuma SAWAGUCHI, Seiji TAKEDA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2020
Materias:	accident at the fukushima daiichi nuclear power station dose estimation removed soil recycling land reclamation Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/908ace4619404af49639895d23c319bb
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spelling	oai:doaj.org-article:908ace4619404af49639895d23c319bb2021-11-29T05:56:31ZDose estimation in the recycling of removed soil for land reclamation2187-974510.1299/mej.19-00569https://doaj.org/article/908ace4619404af49639895d23c319bb2020-04-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/7/3/7_19-00569/_pdf/-char/enhttps://doaj.org/toc/2187-9745Dose estimation for workers and the public was conducted to use the recycled soil removed from the Fukushima prefecture for land reclamation. The land was availed to the public as a greenery-covered area. In the case of revegetation with trees, the absorption of Cs by the trees was considered. The exposure from trees, trimmed or thinned trees, and the organic deposits from litter fall were evaluated. From the results, the concentration levels of radiocesium, 134Cs and 137Cs, for which the annual effective exposure dose does not exceed 1 mSv/y was calculated. Moreover, the thickness of the cover soil required to maintain the exposure dose lower than 10 μSv/y for the public during servicing was ascertained. Furthermore, disasters were considered; for instance, by considering that tsunamis, fires, and intense heavy rain can increase the exposure doses based on the changes in the conditions of the reclamation land. We confirmed that the additional exposure dose during the disaster and rehabilitation of the area was lower than 1 mSv/y. From these evaluation results, we determined the amenable concentration levels for recycling.Asako SHIMADAHiromi NEMOTOTakuma SAWAGUCHISeiji TAKEDAThe Japan Society of Mechanical Engineersarticleaccident at the fukushima daiichi nuclear power stationdose estimationremoved soilrecyclingland reclamationMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 7, Iss 3, Pp 19-00569-19-00569 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	accident at the fukushima daiichi nuclear power station dose estimation removed soil recycling land reclamation Mechanical engineering and machinery TJ1-1570
spellingShingle	accident at the fukushima daiichi nuclear power station dose estimation removed soil recycling land reclamation Mechanical engineering and machinery TJ1-1570 Asako SHIMADA Hiromi NEMOTO Takuma SAWAGUCHI Seiji TAKEDA Dose estimation in the recycling of removed soil for land reclamation
description	Dose estimation for workers and the public was conducted to use the recycled soil removed from the Fukushima prefecture for land reclamation. The land was availed to the public as a greenery-covered area. In the case of revegetation with trees, the absorption of Cs by the trees was considered. The exposure from trees, trimmed or thinned trees, and the organic deposits from litter fall were evaluated. From the results, the concentration levels of radiocesium, 134Cs and 137Cs, for which the annual effective exposure dose does not exceed 1 mSv/y was calculated. Moreover, the thickness of the cover soil required to maintain the exposure dose lower than 10 μSv/y for the public during servicing was ascertained. Furthermore, disasters were considered; for instance, by considering that tsunamis, fires, and intense heavy rain can increase the exposure doses based on the changes in the conditions of the reclamation land. We confirmed that the additional exposure dose during the disaster and rehabilitation of the area was lower than 1 mSv/y. From these evaluation results, we determined the amenable concentration levels for recycling.
format	article
author	Asako SHIMADA Hiromi NEMOTO Takuma SAWAGUCHI Seiji TAKEDA
author_facet	Asako SHIMADA Hiromi NEMOTO Takuma SAWAGUCHI Seiji TAKEDA
author_sort	Asako SHIMADA
title	Dose estimation in the recycling of removed soil for land reclamation
title_short	Dose estimation in the recycling of removed soil for land reclamation
title_full	Dose estimation in the recycling of removed soil for land reclamation
title_fullStr	Dose estimation in the recycling of removed soil for land reclamation
title_full_unstemmed	Dose estimation in the recycling of removed soil for land reclamation
title_sort	dose estimation in the recycling of removed soil for land reclamation
publisher	The Japan Society of Mechanical Engineers
publishDate	2020
url	https://doaj.org/article/908ace4619404af49639895d23c319bb
work_keys_str_mv	AT asakoshimada doseestimationintherecyclingofremovedsoilforlandreclamation AT hirominemoto doseestimationintherecyclingofremovedsoilforlandreclamation AT takumasawaguchi doseestimationintherecyclingofremovedsoilforlandreclamation AT seijitakeda doseestimationintherecyclingofremovedsoilforlandreclamation
_version_	1718407599974514688

Dose estimation in the recycling of removed soil for land reclamation

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