在沿海废水处理厂中,MP积累了持久有机污染物
Jia-An Ye1, Lin-Chi Wang2, Ta-Kang Liu1
1Institute of Ocean Technology and Marine Affairs, National Cheng Kung University, No.1, University Road, Tainan City 701, Taiwan.
Marine pollution bulletin
|September 7, 2024
概括
污水处理厂中的微塑料积累了高水平的持久性有机污染物 (POP). 这些MP,特别是未经处理的影响的MP,比海上发现的POP度要高得多.
科学领域:
- 环境化学环境化学
- 环境科学 环境科学
- 聚合物科学 聚合物科学
背景情况:
- 微塑料 (MP) 在废水处理厂 (WTP) 中普遍存在.
- 在废水中的MP上积累的持久性有机污染物 (POP) 需要进一步调查.
- 了解POPs对MPs的吸收对于评估环境风险至关重要.
研究的目的:
- 量化从废水处理厂 (WTP) 流入和排放中吸收到微塑料 (MP) 的持久有机污染物 (POP).
- 为了比较废水处理不同阶段的MP中的POP度.
- 评估特定的POP同源对MP的整体污染的贡献.
主要方法:
- 从WTPs的流入和流出物中采样MP.
- 在MP中吸收的POP (PCDD/F,PBDD/F,PBDE,PCB) 的表征.
- 使用先进的分析技术量化POP度.
主要成果:
- 最高的POP度 (PCDD/Fs,PBDD/Fs,PBDEs,PCB) 在未经处理的影响物中的MP中被发现,PBDEs高达5220,000 pg/g.
- 有毒的同源1,2,3,7,8-PeCDD在MP中占PCDD/F的32.3%.
- 与沿海微塑料颗粒相比,未经处理的MPs中PCDD/F度高达27.7倍.
结论:
- 污水处理厂的影响是污染POP的微塑料的重要来源.
- 在水生环境中,MPs作为危险的POPs的载体.
- 这项研究提供了关于未经处理的废水中与MP相关的POPs的关键定量数据,突出了潜在的环境风险.
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