The Influence of Redox Potential on the Environmental Chemistry of Contaminants in Soils and Sediments

  • Robert P. Gambrell
  • William H. PatrickJr


Potentially toxic substances such as heavy metals, pesticides, and industrial organics that enter waterways from land runoff or waste discharge accumulate in sediments. Some of these substances are applied directly to soils as when agricultural fields are amended with sewage sludge, or when pesticides are applied. Mobility and bioavailability of contaminants, and degradation in the case of synthetic organics, affect the environmental risk associated with these toxic materials. These environmental chemistry processes are affected by the physical and chemical properties of the contaminated soils and sediments. Oxidation-reduction status, or redox potential, has received much research attention by the Laboratory for Wetland Soils and Sediments at Louisiana State University during the last 15 years. This chapter reviews some of the published and unpublished work from the laboratory during this period.


Redox Potential Stream Sediment Methyl Parathion Runoff Event Disposal Option 
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  1. DeLaune, R.D., Gambrell, R.P. and Reddy, K.S. (1983) Fate of pentachlorophenol in estuarine sediment. Environ. Poll., (Series B), 6, 297–308CrossRefGoogle Scholar
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  10. Gambrell, R.P., Reddy, C.N., Collard, V., Green, G. and Patrick, W.H. Jr (1984b) The recovery of DDT, kepone and permethrin added to soil and sediment suspensions incubated under controlled redox potential and pH conditions. J. Water Poll. Control Fed., 56, 174–82Google Scholar
  11. Gambrell, R.P., Reddy, K.S., Taylor, B.A. and Patrick, W.H. Jr (1984c) Sources, transport, and fate of DDT and toxaphene in a contaminated watershed of the Lower Mississippi River flood-plain. Proc. Imperial College (London) and United Nations Environment Programme Conference on Environmental Contamination, pp. 63–72Google Scholar
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  15. Simmers, J.W., Folsom, B.L. Jr, Lee, C.R. and Bates, D.J. (1981) Field survey of heavy metal uptake by naturally occurring saltwater and freshwater marsh plants. Technical Report EL-81–5, US Army Engineer Waterways Experiment Station, CE, Vicksburg, MSGoogle Scholar

Copyright information

© Donal D. Hook 1988

Authors and Affiliations

  • Robert P. Gambrell
  • William H. PatrickJr

There are no affiliations available

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