• Medientyp: E-Book
  • Titel: Integrated Estrogenic Effects and Semi-Volatile Organic Pollutants Profile in Secondary and Tertiary Wastewater Treatment Effluents in North China
  • Beteiligte: Liu, Wei [Verfasser:in]; Song, Jingyang [Verfasser:in]; Zhao, Jing [Verfasser:in]; Yang, Chen [Verfasser:in]; Liu, Yixin [Verfasser:in]; Yang, Jing [Verfasser:in]; Qi, Xiaojuan [Verfasser:in]; Li, Zechang [Verfasser:in]; Shao, Zheng [Verfasser:in]; Wang, Siyu [Verfasser:in]; Ji, Min [Verfasser:in]; Zhai, Hongyan [Verfasser:in]; Chen, Zhiqiang [Verfasser:in]; Li, Xuehua [Verfasser:in]
  • Erschienen: [S.l.]: SSRN, [2022]
  • Umfang: 1 Online-Ressource (29 p)
  • Sprache: Englisch
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: The aim of the present study was to comparatively assess the estrogenic effects using Chinese rare minnows Gobiocypris rarus, exposed to the effluents from four secondary wastewater treatment plants (SWTP A-D) and a tertiary wastewater treatment plant (TTP E) in north China. The final effluents from SWTPs and TTP E exhibited estrogenic effects in vivo, inducing the increase of male fish plasma vitellogenin (VTG) contents and the E2/T ratios. Consistently, the expression of the target genes regulating sex hormones and VTG production in male fish livers, vtg1, vtg3, era, erβ, and cyp19a were upregulated. The combination of advanced wastewater treatment technologies in tertiary treatment gained a remarkable removal of estrogenic effects in the SWTP effluents, with reduction in integrative biomarkers of estrogenic response at 64%. Furthermore, the detected semi-volatile organic compounds of which the concentrations significantly correlated with the estrogenic effects in the male fishes included alkanes, alkyl-alcohols, chlorobenzenes, phthalates and polycyclic aromatic hydrocarbons. UV disinfection in SWTPs and ozone disinfection in TTP E caused slight change in the estrogenic activity of the effluents. Results suggested the necessity of deep treatment to improve the removal of estrogenic activity and the organic micropollutants in wastewater, to protect the native aquatic species
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