Scholarlink

<p>Understanding the health impact of human radiation exposure from tritiated water release is crucial for the management and sustainability of nuclear energy. However, it remains not fully explored owing to the neglect of bioconversion products (organically bound tritium, OBT) along the food chain. Here by evaluating the uptake and chemical transfer of tritium in biota, we show the critical role of algae in rapidly incorporating and transferring tritiated water into OBT, which serves as nutrients for trophic transfer to fish. Notably, the specific retention of OBT in the fish brain, by integrating into biomolecules, potentially disrupts key metabolic reactions. The derived concentration factors and biomagnification factors are instrumental in estimating the internal exposure dose to human individuals, thereby enabling more accurate risk assessments for both planned tritium releases and accidental leakages. This work highlights the importance of comprehensive evaluation and mitigation of tritium exposure risks.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Human exposure risk via algae-induced transfer of tritiated water in the marine food chain

  • 期刊论文

  • 发表日期：

    2025年11月21日

查看全文
  • Shipeng Dong,
  • Kun Lu,
  • Yu Miao,
  • Fengmei Cui,
  • Yanxu Zhang,
  • Pengfei Xue,
  • Liangliang Zhang,
  • Juan Diwu,
  • Zhifang Chai,
  • Shuao Wang,
  • Liang Mao

摘要

Understanding the health impact of human radiation exposure from tritiated water release is crucial for the management and sustainability of nuclear energy. However, it remains not fully explored owing to the neglect of bioconversion products (organically bound tritium, OBT) along the food chain. Here by evaluating the uptake and chemical transfer of tritium in biota, we show the critical role of algae in rapidly incorporating and transferring tritiated water into OBT, which serves as nutrients for trophic transfer to fish. Notably, the specific retention of OBT in the fish brain, by integrating into biomolecules, potentially disrupts key metabolic reactions. The derived concentration factors and biomagnification factors are instrumental in estimating the internal exposure dose to human individuals, thereby enabling more accurate risk assessments for both planned tritium releases and accidental leakages. This work highlights the importance of comprehensive evaluation and mitigation of tritium exposure risks.