Startseite Impact of fluvial discharge on 137Cs in the ocean following the Fukushima Daiichi Nuclear Power Station accident
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Impact of fluvial discharge on 137Cs in the ocean following the Fukushima Daiichi Nuclear Power Station accident

  • Daisuke Tsumune ORCID logo EMAIL logo , Takaki Tsubono , Kazuhiro Misumi , Kazuyuki Sakuma und Yuichi Onda
Veröffentlicht/Copyright: 12. März 2024
Pure and Applied Chemistry
Aus der Zeitschrift Pure and Applied Chemistry Band 96 Heft 7

Abstract

After the Fukushima Daiichi Nuclear Power Station (F1NPS) accident, 137Cs activity concentrations have not yet decreased to pre-accident levels because of direct release from the site and fluvial discharges of 137Cs deposited on land. It is necessary to consider dispersion processes in the coastal area to understand the impact of multiple river discharges and direct release. To achieve this goal, we carried out oceanic dispersion simulations that considered direct release and fluvial discharges and compared the results with the annual averages of observed data. We assumed that particulate 137Cs discharged from rivers to the ocean quickly resuspended and re-leached after coagulation and precipitation, and that all of the 137Cs was dispersed. The reproducibility of results was improved by considering fluvial discharges of particulate 137Cs at all sites between 2013 and 2016, except near the F1NPS. In other words, particulate 137Cs discharged from rivers was found to influence the results of ocean surface activity concentrations within a relatively short period of time. The impact of direct release was dominant for the observed 137Cs activity concentrations adjacent to the F1NPS, which was used to estimate direct releases.

Keywords: 137Cs; fluvial discharge; Fukushima Daiichi Nuclear Power Station accident; marine environment; radioactive waste in the marine environment 2023; regional ocean model
Corresponding author: Daisuke Tsumune, Center for Research in Radiation, Isotopes, and Earth System Sciences, University of Tsukuba, Ibaraki, 305-8572, Japan; and Central Research Institute of Electric Power Industry, Chiba, 270-1194, Japan, e-mail:
Article note: A collection of invited papers based on the topic of “The global scenario and challenges of radioactive waste in the marine environment” from IUPAC Division VI project #2021-027-2-600.

Acknowledgments

We thank Ryosuke Niwa, Fukiko Taguchi, and Kaori Miyata for their technical help for the simulation. Numerical simulations were performed by the supercomputer system of the Central Research Institute of the Electric Power Institute (HPE SGI 8600).

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Published Online: 2024-03-12
Published in Print: 2024-07-26

© 2024 IUPAC & De Gruyter

Artikel in diesem Heft

  1. Frontmatter
  2. Editorial
  3. The Global Scenario and Challenges of Radioactive Waste in the Marine Environment
  4. Special topic papers
  5. A critical review of the quantification, analysis and detection of radionuclides in the environment using diffusive gradients in thin films (DGT): advances and perspectives
  6. Overview of marine radionuclides from sampling to monitoring
  7. Radionuclides in marine sediment
  8. Speciation and mobility of uranium isotopes in the Shu River: impacts for river to sea transfer
  9. Impact of fluvial discharge on 137Cs in the ocean following the Fukushima Daiichi Nuclear Power Station accident
  10. Transport of radioactive materials from terrestrial to marine environments in Fukushima over the past decade
  11. The transfer of irradiated uranium from the Irish Sea coast to the terrestrial environment in Cumbria, UK
  12. Public knowledge, sentiments, and perceptions of low dose radiation (LDR) and power production, with special reference to reactor accidents
  13. An exercise-based international polymer syllabus
  14. Conference paper
  15. Perovskite: a key structure for a sustainable hydrogen economy
https://doi.org/10.1515/pac-2023-0902
Schlagwörter für diesen Artikel
137Cs; fluvial discharge; Fukushima Daiichi Nuclear Power Station accident; marine environment; radioactive waste in the marine environment 2023; regional ocean model

Artikel in diesem Heft

  1. Frontmatter
  2. Editorial
  3. The Global Scenario and Challenges of Radioactive Waste in the Marine Environment
  4. Special topic papers
  5. A critical review of the quantification, analysis and detection of radionuclides in the environment using diffusive gradients in thin films (DGT): advances and perspectives
  6. Overview of marine radionuclides from sampling to monitoring
  7. Radionuclides in marine sediment
  8. Speciation and mobility of uranium isotopes in the Shu River: impacts for river to sea transfer
  9. Impact of fluvial discharge on 137Cs in the ocean following the Fukushima Daiichi Nuclear Power Station accident
  10. Transport of radioactive materials from terrestrial to marine environments in Fukushima over the past decade
  11. The transfer of irradiated uranium from the Irish Sea coast to the terrestrial environment in Cumbria, UK
  12. Public knowledge, sentiments, and perceptions of low dose radiation (LDR) and power production, with special reference to reactor accidents
  13. An exercise-based international polymer syllabus
  14. Conference paper
  15. Perovskite: a key structure for a sustainable hydrogen economy
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