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U.S. Department of Energy
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Hexachlorobenzene uptake by fathead minnows and macroinvertebrates in recirculating sediment/water systems

Technical Report ·
OSTI ID:6749701
Fathead minnow (Pimephales promelas), the worm, Lumbriculus variegatus, and the amphipods Hyalella azteca and Gammarus lacustris were exposed to hexachlorobenzene (HCB) in water with and without a bed of HCB-spiked sediment. Water HCB concentrations were maintained by recirculation through HCB-packed columns. Recirculating HCB-bound particulates and possibly eroded HCB particulates were an added source of HCB in addition to the sediment bed. Significant bioaccumulation of HCB in animal tissues was observed in water-only and water-sediment exposures. The presence of the HCB-spiked sediment did not result in a significant increase in the uptake of HCB by the organisms, but there was a substantial increase in sediment HCB levels over time. Higher tissue HCB levels in aquaria without sediment suggest that the sediment was a more efficient sink for HCB than the organisms.
Research Organization:
Environmental Protection Agency, Corvallis, OR (USA). Environmental Research Lab.
OSTI ID:
6749701
Report Number(s):
PB-90-217381/XAB; EPA--600/J-90/006
Country of Publication:
United States
Language:
English