The distribution and partitioning of common antibiotics in water and sediment of the Pearl River Estuary, South China

Ximei Liang, Baowei Chen, Xiangping Nie, Zhen Shi, Xiaoping Huang, Xiangdong Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

161 Citations (Scopus)

Abstract

Antibiotics released into the aquatic environment play an important role in the spread of antibiotic resistance. In the Pearl River Estuary (PRE) and the coastal zone, the concentrations of antibiotics decreased from the Pearl River to the estuary, suggesting that antibiotics primarily originated from river tributaries and terrigenous sources. Within the PRE area, the concentrations of antibiotics in water were higher in the west coast than the east side, reflecting the high density of anthropogenic activities and hydraulic conditions along the west riverbank. Seasonal variations were also observed for most of detected antibiotics in water. The pseudo-partitioning coefficient of norfloxacin had a good correlation with the TOC content of sediments, as did erythromycin-H2O with the pH of water. The results suggest that environmental conditions can significantly affect the distribution of antibiotics between water and sediment.
Original languageEnglish
Pages (from-to)1410-1416
Number of pages7
JournalChemosphere
Volume92
Issue number11
DOIs
Publication statusPublished - 1 Sep 2013

Keywords

  • Antibiotics
  • Partitioning
  • Pearl River Estuary
  • Sediment
  • South China
  • Water

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemistry(all)

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