title: Occurrence of endocrine-disrupting compounds in reclaimed water from Tianjin, China.
abstract: Continuous disposal of endocrine-disrupting compounds (EDCs) into the environment can lead to serious human health problems and can affect plants and aquatic organisms. The determination of EDCs in water has become an increasingly important activity due to our increased knowledge about their toxicities, even at low concentration. The EDCs in water samples from the reclaimed water plant of Tianjin, northern China, were identified by gas chromatography (GC)-mass spectrometry (MS). Important and contrasting EDCs including estrone (E1), 17beta-estradiol (E2), 17alpha-ethynylestradiol (EE2), 4-tert-octylphenol (OP), 4-nonylphenol (NP), bisphenol A (BPA), di-n-butyl phthalate (DnBP), diisobutyl phthalate (DIBP), and di(2-ethylhexyl)phthalate (DEHP) were selected as the target compounds. Concentrations of steroid hormones, alkylphenolic compounds and phthalates ranged from below the limit of detection (LOD) to 8.1 ng L(-1), from <LOD to 14.2 ng L(-1), and from 1.00 microg L(-1) to 23.8 microg L(-1), respectively. The average removal efficiencies for target EDCs varied from 30% to 82%. These results indicate that environmental endocrine disrupting compounds are not completely removed during reclaimed water treatment and may be carried over into the general aquatic environment.
authors.affiliation: College of Environmental Science and Engineering, Nankai University, Tianjin 300071, P.R. China. yqwang@nankai.edu.cn
authors.forename: Yuqiu
authors.initials: Y
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Hu
authors.forename: Zhonghong
authors.initials: Z
authors.lastname: Cao
authors.forename: Xueqi
authors.initials: X
authors.lastname: Fu
authors.forename: Tan
authors.initials: T
authors.lastname: Zhu
mesh_terms: D000465:Algorithms; D002681:China; D052244:Endocrine Disruptors / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D018508:Water Purification; D014881:Water Supply / Q000032:analysis*
chemical_list: D052244:Endocrine Disruptors; D014874:Water Pollutants, Chemical