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的饮食生物可用性对一个模型的淡水无脊椎动物

Marie-Noële Croteau¹, Christopher C Fuller¹, Daniel J Cain¹

¹U.S. Geological Survey, Moffett Field, California 94035, United States.

Environmental science & technology

|July 28, 2025

概括

牛的食 (U) 摄入量因来源材料而有很大差异. 了解这种生物积累对于评估矿开采带来的环境风险至关重要.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
地质化学地质化学

背景情况:

矿开采带来了环境暴露的风险.
了解生物体的吸收是评估生物积累和毒性的关键.
的生物可用性在溶解暴露中得到了很好的研究,但在饮食暴露中理解程度较低.

研究的目的:

描述淡水牛Lymnaea stagnalis*饮食吸收的生物地质化学驱动因素.
从各种固体矩阵中评估的生物利用性.
评估食对牛养行为的影响.

主要方法:

使用Lymnaea stagnalis进行实验室实验.
从预暴露的藻,受污染的土壤和含有天然有机物 (NOM) 和不含有天然有机物 (NOM) 的含水铁氧化物 (HFO) 中测试的生物可用性.
测量同化效率 (AE) 和养率.

主要成果:

所有测试的固体中都存在的生物可用性.
AE差异很大,在土壤中最低 (25±17%),在藻中最高 (71±13%).
饮食中的暴露降低了养率,抑制与的生物可用性相反相关.

结论:

*Lymnaea stagnalis*的食的吸收受暴露源的地化学性质的影响.
同化效率的高变化对毒性评估有影响.
考虑通过饮食摄入对于精确评估污染对环境的风险至关重要.

关键词:

在HFO中,HFO是HFO.同化效率的同化效率.生物积累的生物积累饮食中的金属吸收量土壤土壤土壤.

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