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首页> 外文期刊>Environmental toxicology and chemistry >Quantification of steroid hormones with pheromonal properties in municipal wastewater effluent.
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Quantification of steroid hormones with pheromonal properties in municipal wastewater effluent.

机译：定量分析市政废水中具有信息素性质的类固醇激素。

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摘要

Many fish use steroid hormones as pheromones to initiate behavioral and physiological changes during spawning. To assess the occurrence of steroid hormones with pheromonal properties in the aquatic environment and to evaluate the possibility that municipal wastewater discharges contain compounds that could affect fish reproduction by interfering with pheromones, several estrogens, androgens, and progestins were quantified by gas chromatography/tandem mass spectroscopy in effluent samples from 12 municipal wastewater treatment plants. Samples also were analyzed from an engineered treatment wetland, three groundwater wells, and one reservoir. Estrogens (17beta-estradiol and estrone) were detected in wastewater effluent at maximum concentrations of 4 and 12 ng/L, respectively. Androgens (testosterone and androstenedione) were detected at concentrations as high as 6.1 and 4.5 ng/L, respectively, whereas the synthetic progestin medroxyprogesterone was detected at concentrations up to 15 ng/L. Data from an effluent-receiving engineered treatment wetland and shallow groundwater wells suggested that these compounds were not rapidly attenuated. The measured concentrations of steroids often exceeded olfactory detection thresholds at which fish detect these steroids, and in several cases, the steroid concentrations were comparable to levels at which pheromonal responses have been observed in fish.
机译：许多鱼类使用类固醇激素作为信息素，从而在产卵期间引发行为和生理变化。为了评估在水生环境中具有信息素特性的类固醇激素的存在，并评估市政废水排放中含有可能通过干扰信息素而影响鱼类繁殖的化合物的可能性，通过气相色谱/串联质谱定量了几种雌激素，雄激素和孕激素。光谱分析了12个市政废水处理厂的废水样品。还从工程处理过的湿地，三个地下水井和一个水库中分析了样品。废水中的雌激素（17β-雌二醇和雌酮）最高浓度分别为4和12 ng / L。雄激素（睾丸激素和雄烯二酮）的浓度分别高达6.1和4.5 ng / L，而合成的孕激素甲羟孕酮的浓度高达15 ng / L。来自接受污水处理的工程湿地和浅层地下水井的数据表明，这些化合物并未迅速衰减。所测量的类固醇浓度通常超过鱼类检测到这些类固醇的嗅觉检测阈值，在某些情况下，类固醇浓度与在鱼类中观察到的信息素反应水平相当。

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