Accumulation of sediment-sorbed PCBs in tilapia

H. Y. ZHOU, Ming Hung WONG

Research output: Contribution to journalArticles

19 Citations (Scopus)

Abstract

Tilapia were exposed to sediment and water contaminated with PCBs in the laboratory. Ingestion of sediment and/or contact of contaminated particulates were the predominant pathways for sediment-sorbed PCBs accumulation in tilapia rather than water. Tilapia exposed to spiked sediment and river sediment accumulated significantly higher levels of PCBs (27.5 and 3.9 μg/g lipids, respectively) than those exposed to contaminated water (1.6 μg/g lipid). The biota-sediment accumulation factors (BSAFs) of PCBs domains were less than 2.5. PCBs congeners containing four to six chlorine atoms on the biphenyl rings showed a relatively higher accumulation potential. Minor effects of lipid contents, weight and length of fish were observed on PCBs accumulation. Copyright © 2000 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)2905-2914
JournalWater Research
Volume34
Issue number11
DOIs
Publication statusPublished - Aug 2000

Citation

Zhou, H. Y., & Wong, M. H. (2000). Accumulation of sediment-sorbed PCBs in tilapia. Water Research, 34(11), 2905-2914. doi: 10.1016/S0043-1354(00)00049-X

Keywords

  • Bioaccumulation
  • Uptake route
  • Biota-sediment accumulation factors (BSAFs)
  • Laboratory studies

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