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Abstract <p>This work presents measurements of the activity concentration of Tritium (<sup>3</sup>H) in seawater samples in the Gulf of Tonkin, Vietnam, using electrolytic enrichment and liquid scintillation counting. Three sites were investigated Tra Co (Quang Ninh Province), Bach Long Vi (Hai Phong Province), and Ky Anh (Ha&#xa0;Tinh Province), from December 2018 to October 2020 with six surveys. The ranges of <sup>3</sup>H radioactivity in seawater at three sites were 1.25–1.74 TU, 1.12–1.65 TU, and 0.99–1.47 TU, with the average values of 1.47, 1.42, and 1.16 TU respectively. The results of the <sup>3</sup>H activity concentrations obtained in the study were in correspondence with the value range of other studies in Vietnam and Asia–Pacific. These values show that the <sup>3</sup>H radioactivity in seawater in the survey area is low and mainly generated from natural processes through fallout.</p>

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Tritium Activity Concentration Study in Seawater Samples in the Gulf of Tonkin, Vietnam

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • Thi Thu Hang Vuong,
  • Trong Ngo Nguyen,
  • Nhu Sieu Le,
  • Dinh Tung Nguyen,
  • Dinh Khoa Tran,
  • Van Phuc Nguyen,
  • Thi Minh Tuyen Le,
  • Tong Thanh Hong Nguyen

摘要

Abstract

This work presents measurements of the activity concentration of Tritium (3H) in seawater samples in the Gulf of Tonkin, Vietnam, using electrolytic enrichment and liquid scintillation counting. Three sites were investigated Tra Co (Quang Ninh Province), Bach Long Vi (Hai Phong Province), and Ky Anh (Ha Tinh Province), from December 2018 to October 2020 with six surveys. The ranges of 3H radioactivity in seawater at three sites were 1.25–1.74 TU, 1.12–1.65 TU, and 0.99–1.47 TU, with the average values of 1.47, 1.42, and 1.16 TU respectively. The results of the 3H activity concentrations obtained in the study were in correspondence with the value range of other studies in Vietnam and Asia–Pacific. These values show that the 3H radioactivity in seawater in the survey area is low and mainly generated from natural processes through fallout.