Long-term temporal changes in the estrogenic composition of treated sewage effluent and its biological effects on fish
Long-term temporal changes in the estrogenic composition of treated sewage effluent and its biological effects on fish
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DOI：
10.1021/es991059c
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发表时间：
2000-04-15
影响因子：
11.4
通讯作者：
Tyler, CR
中科院分区：
文献类型：
--
作者：
Rodgers-Gray, TP;Jobling, S;Tyler, CR
整个英国的污水处理厂（STW）流出物已被证明具有雌激素，在污水排放的下游相当远（长达几公里）的圈养鱼和野生鱼中诱导卵黄蛋白原（VTG）合成。在这些研究中，笼鱼卵黄原素诱导的阈值是从短期接触中得出的，可能不一定代表生活在含有污水处理厂废水的河流中的野生鱼类的雌激素反应阈值。此外，人们对污水处理厂废水中雌激素成分浓度的长期波动知之甚少。本文确定了经过处理的污水中天然类固醇雌激素和异雌激素（烷基酚类化学物质）的浓度在8个月内波动，从36至308纳克/升之间
Sewage treatment works (STW) effluents throughout the U.K. have been shown to be estrogenic, inducing vitellogenin (VTG) synthesis in caged and wild fish for considerable distances (up to several kilometers) downstream of the effluent discharge. Thresholds for vitellogenin induction in caged fish in those studies have been derived from shortterm exposures, and may not necessarily be representative of thresholds for estrogenic responses in wild fish living in rivers that contain STW effluent. In addition, very little is known about the long-term fluctuations in the concentrations of the estrogenic components of STW effluents. In this paper, it was established that the concentrations of natural steroid estrogens and xenoestrogens (alkylphenolic chemicals)in a treated sewage effluent fluctuated temporally lover 8 months), from between 36 and 308 ng/L and between