大城市上海典型污水处理厂中的微塑料和内分泌干扰剂
Yuxiao Tong1, Manjun Xie2, Hanwen Xv1
1College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China.
Toxics
|May 24, 2024
概括
中国的城市化在废水中释放了微塑料 (MP) 和内分泌干扰物 (EDC). 虽然废水处理厂 (WWTP) 将大部分废水清除,但废水仍然对水生生物构成环境风险.
科学领域:
- 环境科学 环境科学
- 环境化学环境化学
- 生态毒理学 生态毒理学
背景情况:
- 中国的快速城市化导致新兴污染物的释放增加.
- 微塑料 (MP) 和内分泌干扰剂 (EDC) 是废水中发现的重要新兴污染物.
- 废水处理厂 (WWTP) 是这些污染物进入沿海环境的关键通道.
研究的目的:
- 调查上海WWTP的国会议员和EDC的环境行为.
- 量化MP和EDC度,特征和去除效率.
- 评估WWTP废水所带来的环境风险.
主要方法:
- 采样和分析MP和EDC在两个WWTP的入水和废水中.
- MPs的特征 (形状,大小,聚合物类型).
- 量化EDCs (和类固醇雌激素).
- 清除效率和环境风险系数 (RQ) 的计算.
主要成果:
- 在WWTP影响者中检测到高度的MP (321976项/L) 和EDC (1132780 ng/L).
- 纤维和薄膜占据了MP类型的主导地位,较小的MP (<500μm) 是普遍存在的.
- 在WWTP中,MP (6492%) 和EDC (82.8100%) 的清除效率很高,因污染物和季节而异.
- EDCs对藻类和鱼类产生潜在的不利影响,MPs对藻类和鱼类造成的风险较小.
结论:
- 上海的WWTP接收大量的MP和EDC.
- 尽管清除效率高,但WWTP废水仍然可能构成环境风险,特别是来自EDC的废水.
- 季节性变化和MP和EDC之间的相关性凸显了WWTP中的污染物行为的复杂性.
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