title: Occurrence of estrogenic effects in sewage and industrial wastewaters in Beijing, China.
abstract: Estrogenic potencies of the effluents or water samples from wastewater treatment plants (WWTPs), industries and hospitals and some receiving rivers in Beijing city were estimated by using a human estrogen receptor recombinant yeast assay. Estrogenic activity of industrial wastewaters was found to range from 0.1 to 13.3 ng EEQ/L and decreased to the range of 0.03-1.6 ng EEQ/L after treatment. Estrogenic activity in WWTP influent ranged from 0.3 to 1.7 ng EEQ/L and decreased to the range of 0.05-0.5 ng EEQ/L after treatment. In the receiving river waters, the estrogenic effect range was 0.1-4.7 ng EEQ/L. These data suggest that treated industrial effluents and WWTP effluents of concern are not the only source of estrogenic pollution in surface waters in Beijing city. EEQ levels in Beijing river water are likely attributable to untreated municipal and industrial wastewaters discharged directly into the river.
authors.affiliation: State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, PR China.
authors.forename: Mei
authors.initials: M
authors.lastname: Ma
authors.forename: Kaifeng
authors.initials: K
authors.lastname: Rao
authors.forename: Zijian
authors.initials: Z
authors.lastname: Wang
mesh_terms: D002681:China; D004784:Environmental Monitoring / Q000379:methods; D004958:Estradiol / Q000032:analysis; D004967:Estrogens / Q000032:analysis*; D007220:Industrial Waste / Q000032:analysis*; D045483:Rivers / Q000737:chemistry; D012722:Sewage / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
chemical_list: D004967:Estrogens; D007220:Industrial Waste; D012722:Sewage; D014874:Water Pollutants, Chemical; D004958:Estradiol