Behavior and occurrence of estrogens in municipal sewage treatment plants - I. Investigations in Germany, Canada and Brazil
Behavior and occurrence of estrogens in municipal sewage treatment plants - I. Investigations in Germany, Canada and Brazil
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DOI:
10.1016/s0048-9697(98)00334-9
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发表时间:
1999-01-12
影响因子:
9.8
通讯作者:
Servos, M
中科院分区:
文献类型:
--
作者:
Ternes, TA;Stumpf, M;Servos, M
The developed method enables the quantification of estrogens in sewage samples down to 1 ng/l and in river water down to 0.5 ng/l. Mean recoveries of the analytes in ground water after SPE extraction, clean-up and derivatization generally exceeded 75%. The determined R.S.D. varied from 0 to 14% at a spiking revel of 0.05 mu g/l. Even in the raw influent and the final effluent from municipal STPs the mean recoveries of estrogens were mostly above 70%. Using this method the behavior and occurrence of natural estrogens and synthetic contraceptives in municipal sewage treatment plants (STP) were investigated in German and Canadian facilities. In the sewage of a German municipal STP close to Frankfurt/Main 17 beta-estradiol and estrone were determined, with mean concentrations of 0.015 mu g/l and 0.027 mu g/l, respectively. In two investigated municipal STPs, 17 beta-estradiol and 16 alpha-hydroxyestrone were eliminated with a higher efficiency than 17 alpha-ethinylestradiol and estrone. In Canadian and German STP discharges estrone, 17 beta-estradiol, 17 alpha-ethinylestradiol and 16a-hydroxyestrone were frequently detected within the lower ng/l-range. A maximum concentration was found for estrone with 70 ng/l. In 15 investigated German rivers and streams only estrone was present with a maximum concentration of 1.6 ng/l. (C) 1999 Elsevier Science B.V. All rights reserved.