在受料区废水排放影响的河流中,雌激素的多相分离
Kuo-Hui Yang1, Hao-Shen Hung1, Wei-Hsiang Huang1,2
1Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan.
Toxics
|September 27, 2024
概括
河水中的雌激素对水生生物构成高风险. 体显著影响雌激素的分布,影响它们的环境命运和水生生态系统中的毒性.
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:
- 来自动物料场废水等来源的雌激素化合物可以破坏水生生态系统.
- 了解河流系统中雌激素的分离和分布对于风险评估至关重要.
研究的目的:
- 为了研究关键雌激素 (雌激素,17β-雌醇,雌醇) 的多相分离,在台湾的乌洛溪.
- 确定不同水相 (悬浮颗粒物,体,溶性) 在雌激素分布中的作用.
- 评估河流系统中雌激素度所带来的环境风险.
主要方法:
- 水样被分成悬浮颗粒物 (SPM),合体和可溶性相,使用离心和交叉流超.
- 每个阶段的雌激素度 (E1,E2,E3) 用液体染色学-并联质谱法 (LC/MS/MS) 来量化.
- 分割系数被计算出来,以分析雌激素在不同阶段的分布.
主要成果:
- 主要在可溶性阶段 (85.8-87.3%) 发现雌激素,其中很大一部分也与合性阶段 (12.7-14.2%) 相关.
- 雌激素等效 (EEQ) 值表明对水生生物的风险很高,水中的度比SPM带来更大的风险.
- 与SPM (2.02-3.40 L/kg-C) 相比,体分区 (4.72-4.77 L/kg-C) 的较高的log K值突出显示了体的作用.
结论:
- 体物质在河流系统中对雌激素的分布,命运,运输和潜在的生物毒性起着至关重要的作用.
- 评估水生环境中的雌激素行为需要考虑体相互作用.
- 这项研究强调了河流环境中雌激素污染带来的显著生态毒理风险.
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