The occurrence and ecological risks of endocrine disrupting chemicals in sewage effluents from three different sewage treatment plants, and in natural seawater from a marine reserve of Hong Kong

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Elvis G.B. Xu
  • Shan Liu
  • Guang-Guo Ying
  • Gene J.S. Zheng
  • Joseph H.W. Lee

Detail(s)

Original languageEnglish
Pages (from-to)352-362
Journal / PublicationMarine Pollution Bulletin
Volume85
Issue number2
Online published17 Mar 2014
Publication statusPublished - 30 Aug 2014
Externally publishedYes

Abstract

We determined the concentrations of 12 endocrine disrupting chemicals (EDCs) in sewage effluents collected from three different sewage treatment plants (STPs) in Hong Kong, and found 4-nonylphenol (NP) and bisphenol A (BPA) were the most abundant EDCs. Effluent concentrations of NP and BPA were higher in dry season than in wet season, but opposite seasonal changes of NP were observed in receiving waters, probably due to the surface runoff. The two secondary STPs showed higher removal efficiency for these compounds than the preliminary STP, while having higher removal efficiency in wet season. Therefore, it is necessary to upgrade the preliminary STP and improve the EDC removal efficiency in dry season. Seawaters from the Cape D' Aguilar Marine Reserve adjacent to these STPs also exhibited elevated NP levels with a hazard quotient >1. Furthermore, diluted effluents from the STPs elicited significant transcriptional responses of EDC-related genes in the marine medaka fish. © 2014 Elsevier Ltd.

Research Area(s)

  • Ecotoxicology, Endocrine disrupting chemicals, Environmental risk assessment, Marine protected areas, Marine reserve, Sewage treatment plant

Citation Format(s)

The occurrence and ecological risks of endocrine disrupting chemicals in sewage effluents from three different sewage treatment plants, and in natural seawater from a marine reserve of Hong Kong. / Xu, Elvis G.B.; Liu, Shan; Ying, Guang-Guo; Zheng, Gene J.S.; Lee, Joseph H.W.; Leung, Kenneth M.Y.

In: Marine Pollution Bulletin, Vol. 85, No. 2, 30.08.2014, p. 352-362.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review