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Migration mechanisms of 90Sr and 137Cs on terraces.
Guan, Yongjing; Guo, Zichen; Chen, Wu; Fan, Kaidi; He, Hua; Cui, Liangjia; Huang, Chunping; He, Xianwen; Xu, Zeyue; Zhang, Jiajia; He, Ye; Wang, Huijuan.
Afiliação
  • Guan Y; Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China. Electronic address: yjguan@gxu.edu.cn.
  • Guo Z; Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China; Radiation-Environment Management and Monitoring Station of Guangxi Zhuang Autonomous Region, Guangxi, Nanning, 530222, China.
  • Chen W; Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China.
  • Fan K; Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China.
  • He H; Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China.
  • Cui L; Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China.
  • Huang C; Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China.
  • He X; Radiation-Environment Management and Monitoring Station of Guangxi Zhuang Autonomous Region, Guangxi, Nanning, 530222, China.
  • Xu Z; Radiation-Environment Management and Monitoring Station of Guangxi Zhuang Autonomous Region, Guangxi, Nanning, 530222, China.
  • Zhang J; Radiation-Environment Management and Monitoring Station of Guangxi Zhuang Autonomous Region, Guangxi, Nanning, 530222, China.
  • He Y; Radiation-Environment Management and Monitoring Station of Guangxi Zhuang Autonomous Region, Guangxi, Nanning, 530222, China.
  • Wang H; Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, 530004, China. Electronic address: hjwang@gxu.edu.cn.
J Environ Radioact ; 275: 107428, 2024 May.
Article em En | MEDLINE | ID: mdl-38547560
ABSTRACT
In order to investigate the impact of environmental conditions on the distribution and migration of 90Sr in the Longji terrace environment, the activity concentrations of 90Sr and 137Cs were determined. The activity concentration ranges of 90Sr and 137Cs in surface soil were 0.15-1.04 Bq/kg and 2.16-6.94 Bq/kg, respectively. These results showed that there was a similar trend between the activity concentration of 90Sr and 137Cs in the surface soil along the runoff path and their activity concentration were influenced by the slope of the terraced terrain. On the other hand, the activity ranges of 90Sr and 137Cs in soil cores were 0.01-2.74 Bq/kg and 0.43-7.19 Bq/kg, respectively. These results indicate that the migration mechanism of 90Sr is different from that of 137Cs. As compared with 137Cs, 90Sr is significantly influenced by the moisture content. In addition, high span of 137Cs/90Sr activity ratios were found in this study, which were attributed to the characteristics of cultivated land and frequent artificial disturbances that intensified the migration of 90Sr.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Poluentes Radioativos do Solo / Radioisótopos de Estrôncio / Radioisótopos de Césio / Monitoramento de Radiação Idioma: En Revista: J Environ Radioact / J. environ. radioact / Journal of environmental radioactivity Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2024 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Poluentes Radioativos do Solo / Radioisótopos de Estrôncio / Radioisótopos de Césio / Monitoramento de Radiação Idioma: En Revista: J Environ Radioact / J. environ. radioact / Journal of environmental radioactivity Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2024 Tipo de documento: Article