当异质污染物共存时,与微塑料相互作用的行为,机制和危险变化:和兰
Qingrun Liu1, Dajun Wu2, Jinchi Han3
1School of Food and Bioengineering, Xihua University, Chengdu, Sichuan Province, China; State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore.
Journal of hazardous materials
|September 11, 2025
概括
微塑料 (MPs) 吸附 (As3+) 和,表现出竞争性和协同效应. 虽然这些微塑料吸收的污染物对环境造成的风险最小,但它们对人类健康构成重大危害.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 毒理学 毒理学 毒理学
背景情况:
- 微塑料 (MP) 是具有复杂相互作用的新兴污染物.
- 国会议员可以吸附各种污染物,影响它们的环境命运和毒性.
- 了解MP污染物相互作用对于风险评估至关重要.
研究的目的:
- 在六种类型的MP中研究As3+和thiram的吸附行为和机制.
- 确定同时吸附过程中的协同效应和竞争效应.
- 评估吸附污染物对环境和人类健康的潜在危害.
主要方法:
- 使用六种类型的MP和As3+/thiram的吸附实验.
- 动力和同热模拟 (伪二阶,兰木尔).
- 吸附机制的分析 (疏水,静电,非共价相互作用).
- 用吸附污染物对MP的毒性评估.
主要成果:
- 吸附动力学遵循伪二阶和兰迈尔模型,表明单层吸附.
- 吸附过程是自发的和内热的.
- 同时吸附As3+和thiram表现出竞争和协同的行为.
- 吸附机制涉及疏水,静电和非共价相互作用.
- 吸附的污染物显示出低急性环境毒性,但增加了人类健康风险.
结论:
- 通过物理和化学相互作用,MPs有效地吸附As3+和thiram.
- MP污染物的吸附受MP特性,吸附物质特性和环境条件的影响.
- 虽然环境毒性有限,但联合暴露对人类健康造成了重大关注,需要进一步的毒理学研究和清除策略.
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