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冰解盆地中雌激素的季节性动态,来源和生态风险:对水生生态系统的影响

Jiamei Wang¹, Tianzhi Li¹, Wei Ouyang²

¹State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.

Ecotoxicology and environmental safety

|March 4, 2025

概括

季节性盆地中的雌激素污染带来了生态风险. 度在雨季和解季达到峰值,威胁水生生物,需要加强监测和污水处理.

科学领域:

环境化学环境化学
生态毒理学生态毒理学
评估水质水质的评估.

背景情况:

雌激素是强大的内分泌干扰剂,已知具有生殖毒性.
天然,合成和性雌激素对地表水的污染是一个日益严重的环境问题.
季节性融盆地对污染物分布和生态风险构成独特的挑战.

研究的目的:

研究七个向性雌激素在季节性冷解盆地的空间和时间分布.
评估这些雌激素污染物对水生生物构成的生态风险.
确定雌激素污染的主要来源和季节性变化.

主要方法:

对七种向性雌激素的分析:雌激素 (E1),17β- Estradiol (E2), (E3),17α-乙烯基 Estradiol (EE2),乙烯基 Estrol (DES),双-A (BPA) 和非 (NP).
监测不同季节 (湿,解,结) 的地表水度.
使用鱼类,藻类和甲类的总雌激醇等效度 (EEQ_T) 的生态风险评估.

主要成果:

总雌激素度在15.30-489.62 ng·L-1之间,其中BPA,NP,DES和E3是主要污染物.
雌激素度表现出显著的季节性变化,在潮湿和解季节最高,在结季节下降.
确定的来源包括混合畜牧业和家庭污水排放和垃圾填埋场液,随着排放量的增加加剧了污染.

结论:

季节性盆地的雌激素污染对鱼类构成高生态风险,对藻类和甲类构成中等风险.
总雌二醇等效度 (EEQ_T) 在所有季节都始终超过安全值.
建议包括增加季节性监测,严格的污水处理和排放控制以减轻生态危害.

关键词:

分散污染是指分散的污染.生态风险生态风险雌激素是一种雌激素.季节性的冷解.

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