Relationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar

Relationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar

Abstract After the accident at the TEPCO Fukushima Daiichi Nuclear Power Plant in 2011, it became important to study radiation dynamics, assess internal radiation exposure and specify factors affecting radionuclide variation in wildlife. Therefore, it is necessary to investigate which physicochemica...

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Autores principales: Rie Saito, Yui Nemoto, Hirofumi Tsukada
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2020
Materias:
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Acceso en línea:https://doaj.org/article/dca4f9cf2add49088c8f6bef6bae69a9
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spelling oai:doaj.org-article:dca4f9cf2add49088c8f6bef6bae69a92021-12-02T18:27:50ZRelationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar10.1038/s41598-020-63507-52045-2322https://doaj.org/article/dca4f9cf2add49088c8f6bef6bae69a92020-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-63507-5https://doaj.org/toc/2045-2322Abstract After the accident at the TEPCO Fukushima Daiichi Nuclear Power Plant in 2011, it became important to study radiation dynamics, assess internal radiation exposure and specify factors affecting radionuclide variation in wildlife. Therefore, it is necessary to investigate which physicochemical fractions of radiocaesium (137Cs) are absorbed from ingested material in species with high activity concentrations of 137Cs, such as wild boar. This study analysed the physicochemical fractions of 137Cs in the stomach contents of wild boar to evaluate the transfer from ingested food to muscle. The 137Cs activity concentration in muscle showed a significantly positive relationship with the 137Cs activity concentration in the exchangeable fraction, and the sum of the 137Cs activity concentrations in the exchangeable and bound to organic matter fractions. Seasonal variations were also found in the 137Cs activity concentration in the exchangeable fraction, and the sum of the 137Cs activity concentrations in the exchangeable and bound to organic matter fractions. These findings suggest that the proportions of the physicochemical fractions of 137Cs in the exchangeable and bound to organic matter fractions in the stomach contents are important factors affecting the increases and seasonal dynamics of the activity concentrations of 137Cs in wild boar muscle.Rie SaitoYui NemotoHirofumi TsukadaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Rie Saito
Yui Nemoto
Hirofumi Tsukada
Relationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar
description Abstract After the accident at the TEPCO Fukushima Daiichi Nuclear Power Plant in 2011, it became important to study radiation dynamics, assess internal radiation exposure and specify factors affecting radionuclide variation in wildlife. Therefore, it is necessary to investigate which physicochemical fractions of radiocaesium (137Cs) are absorbed from ingested material in species with high activity concentrations of 137Cs, such as wild boar. This study analysed the physicochemical fractions of 137Cs in the stomach contents of wild boar to evaluate the transfer from ingested food to muscle. The 137Cs activity concentration in muscle showed a significantly positive relationship with the 137Cs activity concentration in the exchangeable fraction, and the sum of the 137Cs activity concentrations in the exchangeable and bound to organic matter fractions. Seasonal variations were also found in the 137Cs activity concentration in the exchangeable fraction, and the sum of the 137Cs activity concentrations in the exchangeable and bound to organic matter fractions. These findings suggest that the proportions of the physicochemical fractions of 137Cs in the exchangeable and bound to organic matter fractions in the stomach contents are important factors affecting the increases and seasonal dynamics of the activity concentrations of 137Cs in wild boar muscle.
format article
author Rie Saito
Yui Nemoto
Hirofumi Tsukada
author_facet Rie Saito
Yui Nemoto
Hirofumi Tsukada
author_sort Rie Saito
title Relationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar
title_short Relationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar
title_full Relationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar
title_fullStr Relationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar
title_full_unstemmed Relationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar
title_sort relationship between radiocaesium in muscle and physicochemical fractions of radiocaesium in the stomach of wild boar
publisher Nature Portfolio
publishDate 2020
url https://doaj.org/article/dca4f9cf2add49088c8f6bef6bae69a9
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AT yuinemoto relationshipbetweenradiocaesiuminmuscleandphysicochemicalfractionsofradiocaesiuminthestomachofwildboar
AT hirofumitsukada relationshipbetweenradiocaesiuminmuscleandphysicochemicalfractionsofradiocaesiuminthestomachofwildboar
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