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.
Original language | English |
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Pages (from-to) | 2905-2914 |
Number of pages | 10 |
Journal | Water Research |
Volume | 34 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Aug 2000 |
User-Defined Keywords
- Bioaccumulation
- Biota-sediment accumulation factors (BSAFs)
- Laboratory studies
- Uptake route