在综合下水道溢流中有机微污染物的源特定动态
Viviane Furrer1, Andreas Froemelt2, Heinz Singer2
1Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland; Institute of Civil, Environmental and Geomatic Engineering, ETH Zürich, 8093 Zurich, Switzerland.
Water research
|March 15, 2025
概括
综合下水道溢出 (CSO) 将数千种室内和室外微污染物 (MP) 释放到水道中. 了解这些MP来源和动态对于环境保护和减缓至关重要.
科学领域:
- 环境化学环境化学
- 水质监测 水质监测
- 分析化学 分析化学
背景情况:
- 综合下水道溢出 (CSO) 是进入水环境的有机微污染物 (MP) 的重要来源.
- 对于民间社会组织期间国会议员的数量,起源和行为,人们对其了解有限,这阻碍了影响评估和缓解努力.
研究的目的:
- 调查在民间社会组织期间溶解的有机议员的动态.
- 识别和量化MP源 (室内与室外) 以及它们在不同水区大小中的时间模式.
主要方法:
- 在多个CSO事件中进行高时间分辨率采样 (10分钟复合样本).
- 液体染色学高分辨率质谱学 (LC-HRMS) 用于目标 (60种物质) 和非目标MP分析.
- 应用随机森林分类器来归因非目标MP源.
主要成果:
- 观察到源特定的MP模式,特别是室内和轮胎相关的化合物.
- 通过民间社会组织排放的数千种来自室内来源的物质和数百种来自室外来源的物质.
- 证明了高度变异性,排除了一些MP组的时间相关性.
结论:
- 公民社会组织发布了庞大而复杂的国会议员组合,远远超过了传统的目标清单.
- 广泛的选方法对于在民间社会组织中全面评估MP污染是必不可少的.
- 了解MP动态和源头对于民间社会组织的有效环境管理至关重要.
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