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.
CitationZhou, 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
- Uptake route
- Biota-sediment accumulation factors (BSAFs)
- Laboratory studies