2024-03-28T18:59:12Z
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2022-04-27T08:59:40Z
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Estimated environmental radionuclide transfer and deposition into outdoor swimming pools
田神, 一美
末木, 啓介
Tagami, Kazumi
Nagata, Izumi
Sueki, Keisuke
In 2011, a large radioactive discharge occurred at the Fukushima Daiichi nuclear power plant. This plant is located within a climatically temperate region where outdoor swimming pools are popular. Although it is relatively easy to decontaminate pools by refilling them with fresh water, it is difficult to maintain safe conditions given highly contaminated diurnal dust falls from the surrounding contaminated ground. Our objectives in this paper were to conduct daily radioactivity measurements, to determine the quantity of radioactive contaminants from the surrounding environment that invade outdoor pools, and to investigate the efficacy of traditional pool cleaners in removing radioactive contaminants. The depositions in the paper filterable particulates ranged from 0 to 62,5 Bq/m2/day, with the highest levels found in the southern Tohoku District containing Fukushima Prefecture and in the Kanto District containing Tokyo Metro. They were approximately correlated with the ground contamination. Traditional pool cleaners eliminated 99% of contaminants at the bottom of the pool, reducing the concentration to 41 Bq/m2 after cleaning. Authors recommended the deposition or the blown radionuclides into outdoor swimming pools must be considered into pool regulations when the environments exactly polluted with radionuclides.
journal article
ELSEVIER
2014-10
application/pdf
Journal of environmental radioactivity
136
30
35
0265-931X
AA10458871
https://tsukuba.repo.nii.ac.jp/record/31430/files/JER_136.pdf
eng
24878717
10.1016/j.jenvrad.2014.04.014
© 2014 Elsevier Ltd. NOTICE: this is the author's version of a work that was accepted for publication in Journal of environmental radioactivity. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of environmental radioactivity, 136, 2014. DOI: 10.1016/j.jenvrad.2014.04.014