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首页> 外文期刊>Ground Water Monitoring & Remediation >Analysis of Endocrine Disrupting Steroids: Investigation of Their Release into the Environment and Their Behavior During Bank Filtration
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Analysis of Endocrine Disrupting Steroids: Investigation of Their Release into the Environment and Their Behavior During Bank Filtration

机译：内分泌干​​扰类固醇的分析：银行过滤过程中释放到环境中及其行为的调查

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摘要

A reliable and sensitive analytical method for the determination of estrone (E1), 17β-estradiol (E2), and the synthetic hormone 17α-ethinylestradiol (EE2) has been established. Samples are concentrated using automated solid-phase extraction and analysis is performed by liquid chromatography with detection by tandem mass spectrometry. Recoveries of all analytes were between 93% and 107%, and limits of quantification (LOQs) between 0.1 and 0.4 ng/L for purified sewage, and surface, ground, and drinking water, and between 1 and 2 ng/L in case of raw sewage. For the investigation of estrogen release into the environment and its behavior during sewage and surface water treatment, and during ground water recharge, samples from municipal waste water treatment plants (WWTPs), a surface water treatment plant, a bank filtration site, and a ground water enrichment (GWE) pond were analyzed. E1 was found in the raw waste water with an average concentration of 157 ng/L, whereas E2 and EE2 were found with mean concentrations of only 18 and 9 ng/L, respectively. Sewage treatment by municipal WWTPs affected a removal of EE2 (76%), E1 (92%), and E2 (94%). In the investigated surface water of Berlin, only E1 could be detected at concentrations around or below 1 ng/L. E2 and EE2 were not present in the Berlin surface water above the LOQ of 0.2 ng/L, respectively. Surface water treatment also leads to a significant removal of E1 (> 80%). In the ground water samples from the GWE site near Lake Tegel, only a few samples contained detectable concentrations of E1. These samples were collected from a shallow monitoring well located very close to the bank of the pond. Even a short distance between the bank and observation wells led to concentrations of E1 below the LOQ showing the potential of ground water recharge systems for the retention of estro-genic steroids depending on the environmental setting.
机译：建立了测定雌酮（E1），17β-雌二醇（E2）和合成激素17α-乙炔基雌二醇（EE2）的可靠而灵敏的分析方法。使用自动固相萃取法浓缩样品，并通过液相色谱法进行分析，并通过串联质谱法进行检测。所有分析物的回收率在93％到107％之间，并且净化后的污水，地表，地面和饮用水的定量限（LOQ）在0.1到0.4 ng / L之间，如果是，则定量限在1-2 ng / L之间。生污水。为了研究在污水和地表水处理以及地下水补给期间雌激素向环境中的释放及其行为，从市政废水处理厂（WWTP），地表水处理厂，岸边过滤站点和地面取样分析了水富集池。在原废水中发现E1的平均浓度为157 ng / L，而E2和EE2的平均浓度分别仅为18 ng / L和9 ng / L。市政污水处理厂的污水处理影响了EE2（76％），E1（92％）和E2（94％）的去除。在研究的柏林地表水中，只有大约1 ng / L或以下的浓度才能检测到E1。 E2和EE2分别不在LOQ为0.2 ng / L的柏林地表水中。地表水处理还可以显着去除E1（> 80％）。在来自特格尔湖附近的GWE站点的地下水样本中，只有少数样本含有可检测到的E1浓度。这些样品是从非常靠近池塘岸的浅井中采集的。即使银行和观测井之间的距离很短，也会导致E1的浓度低于LOQ，这表明地下水补给系统有可能保留雌激素类固醇，具体取决于环境设置。

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