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Binding of Polychlorinated Biphenyls to Sediment

Published online by Cambridge University Press:  02 July 2020

William F. Tivol
Affiliation:
Wadsworth Center and School of Public Health, Empire State Plaza, P.O. Box 509, Albany, NY, 12201-0509
Ann C. Casey
Affiliation:
Wadsworth Center and School of Public Health, Empire State Plaza, P.O. Box 509, Albany, NY, 12201-0509
Xuemei Liu
Affiliation:
Wadsworth Center and School of Public Health, Empire State Plaza, P.O. Box 509, Albany, NY, 12201-0509
Brian Bush
Affiliation:
Wadsworth Center and School of Public Health, Empire State Plaza, P.O. Box 509, Albany, NY, 12201-0509
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Extract

Transport, cleanup, and bioremediation properties of polychlorinated biphenyls (PCBs) bound to sediments depend on the specific components to which the PCBs are bound. Analysis of the sediment from Contaminant Cove on the St. Lawrence River by gas chromatography with an electron capture detector shows that the sediment contains 600 ppm PCBs. Previous work showed that there were both weak and strong binding of PCBs to sediment components, but gave no indication of which components were responsible for the binding.2 The average content of PCBs is below the limit of detectability by energy-dispersive x-ray microanalysis (EDX) for CI, but constituents which bind large quantities of PCBs could be detected. Sediment which is not contaminated with PCBs contains no detectable chlorine.

EDX analysis was performed on a JEOL JEM-4000FX, using a cryo-stage (operated at -160° C) and a Tracor TN5500 system.

Type
Microscopy and Microanalysis in the “Real World”
Copyright
Copyright © Microscopy Society of America

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References

References:

1.Bush, B. and Casey, A. C., unpublished data.Google Scholar
2.Zaidi, S. F. M., master's thesis, unpublished.Google Scholar
3.Bush, B. et al., Chemosphere 16(1987)733.CrossRefGoogle Scholar
4.Hong, C-S et al., in preparation.Google Scholar
5. Supported by NIEHS Superfund Basic Research grant ES4913, and using the facilities of the Wadsworth Center's Biological Microscopy and Image Reconstruction Resource, a National Biotechnological Resource Center NIH/NCRR grant RR01219.Google Scholar