論文

査読有り
2022年9月9日

CHARACTERISATION OF RADIOACTIVE CAESIUM IN SEDIMENTS AT THE NOGAWA RIVER, JAPAN

Radiation Protection Dosimetry
  • Satoshi Inose
  • ,
  • Yusuke Nanri
  • ,
  • Rintaro Saito
  • ,
  • Wataru Matsuda
  • ,
  • Takayuki Honda
  • ,
  • Yuya Koike

198
13-15
開始ページ
909
終了ページ
913
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1093/rpd/ncac008
出版者・発行元
Oxford University Press (OUP)

Abstract

The TEPCO Fukushima Daiichi Nuclear Power Plant accident that occurred in March 2011 resulted in the release of radioactive caesium into the environment. The radioactive caesium has been detected in the Tama River watershed. Previous investigations have shown that the concentration of radioactive caesium in sediment was relatively high in the Nogawa River. In this study, the relationship between the concentration of radioactive caesium in the sediment and the sediment characteristics was investigated. We found that 137Cs concentration in the tributary sediment has difficulty migrating downstream, while exhibiting a strong correlation with the amount of organic matter and a correlation with the clay, silt layer. Based on the results, we inferred that 137Cs is deposited together with the organic matter and clay, silt layer in the sediment and migrates at a slower pace than that in the mainstem.

リンク情報
DOI
https://doi.org/10.1093/rpd/ncac008
URL
https://academic.oup.com/rpd/article-pdf/198/13-15/909/45754121/ncac008.pdf
ID情報
  • DOI : 10.1093/rpd/ncac008
  • ISSN : 0144-8420
  • eISSN : 1742-3406

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