Preliminary investigations on the influence of suspended sediments on the bioaccumulation of two chlorobenzenes by the guppy (Poecilia reticulata) |
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| Authors: | Schrap S. Marca Opperhuizen Antoon |
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| Affiliation: | (1) Laboratory of Environmental and Toxicological Chemistry, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands;(2) Department of Basic Veterinary Sciences, Environmental Toxicology Section, University of Utrecht, P.O. Box 80176, 3508 TD Utrecht, The Netherlands |
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| Abstract: | In this study the uptake by guppies (Poecilia reticulata) of 1,2,3-trichlorobenzene (TCB) and hexachlorobenzene (HCB) from sediment-free water was compared with uptake in the presence of suspended sediment. The results show that the influence of suspended sediment on the uptake of chlorobenzenes varies with test compound. For TCB uptake was not influenced by the presence of suspended sediment. This is probably due to the large amount of the chemical which is dissolved relative to the amount which is present in the sorbed state. For the more hydrophobic HCB, the concentration found in the fish from the system with suspended sediment was significantly higher than in fish from the control experiment. |
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| Keywords: | bioavailability bioaccumulation hydrophobicity fish chlorobenzenes |
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