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<p>Global nuclear activities release radioactive cesium into oceans, threatening ecosystems. The beach serves as a crucial area for ecological interaction between ocean and inland, and research on this topic is essential for assessing environmental risks. This study aims to investigate cesium uptake by various beach sediments. Results show that muddy beach sediments, characterized by high clay and organic matter content, exhibit higher cation exchange capacity and stronger cesium adsorption. Coexisting cations and organic matter inhibit adsorption, with the extent varying by sediment type. These findings facilitate understanding of cesium behavior in coastal sediments.</p> Graphical Abstract <p></p>

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The adsorption of cesium onto different types of beach sediments

  • 期刊论文

  • 发表日期：

    2025年5月27日

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  • Niya Ou,
  • Yun Wang,
  • Teng He,
  • Wentao Zhang,
  • Ping Li,
  • Huiyang Mei,
  • Jianjun Liang,
  • Xiaolan Zhang,
  • Qiaohui Fan

摘要

Global nuclear activities release radioactive cesium into oceans, threatening ecosystems. The beach serves as a crucial area for ecological interaction between ocean and inland, and research on this topic is essential for assessing environmental risks. This study aims to investigate cesium uptake by various beach sediments. Results show that muddy beach sediments, characterized by high clay and organic matter content, exhibit higher cation exchange capacity and stronger cesium adsorption. Coexisting cations and organic matter inhibit adsorption, with the extent varying by sediment type. These findings facilitate understanding of cesium behavior in coastal sediments.

Graphical Abstract