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Rising temperatures decrease rare earth element bioavailability and ecological risk in coastal sediments

delete2025-07-18
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PRE
AI
Y
Yang‐Guang Gu *
高
高艳蓬 (Yanpeng Gao)
R
Richard W. Jordan
S
Shijun Jiang
H
Honghui Huang
DOI:10.1007/s10311-025-01864-1delete
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摘要

摘要

En 中文
稀土元素是日益引起健康关注的沉积污染物,但全球变暖对其生物利用度和毒性的影响尚不清楚。为测试这一点,我们应用薄膜扩散梯度技术评估了温度在0至40 °C范围内沉积物中15种稀土元素(包括镧系元素和钇)的生物利用度。我们使用物种敏感度分布–概率风险评价–包含–排除原则对水生生物的生态毒理学风险进行了建模。结果表明,随着温度从0升至40 °C,所有稀土元素的生物利用度降低了40%至70%,表明其迁移性降低且沉积物吸附增强。类似地,计算得出的生态毒理学风险从1.75%降至0.08%。这是首次证实温度驱动的稀土元素沉积物风险衰减,表明全球变暖应会降低某些稀土元素的毒性。
Keyword:
Rare earth elements
Bioavailability
Ecotoxicological risk
Temperature effects
Diffusive gradients in thin films
Coastal sediments

期刊

Environmental Chemistry Letters 封面图
Environmental Chemistry Letters
IF:
20.4
论文数:
2.0K
被引数:
2.1W

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Institute of Environmental Health and Pollution Control
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24
论文数: 8
被引数: 2
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Faculty of Science
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6.3K
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被引数: 2
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