Study of oil-water partitioning of a chemical dispersant using an acute bioassay with marine crustaceans |
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| Authors: | Peter G. Wells Scott Abernethy Donald Mackay |
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| Affiliation: | Institute for Environmental Studies University of Toronto Toronto, Ontario, Canada M5S 1A4 |
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| Abstract: | The toxicity of seawater dispersions of a chemical dispersant to two marine crustaceans was investigated in the presence and absence of various quantities of a non-toxic mineral oil. From the results and a physical-chemical partitioning analysis, a limiting value of the oil-water partition coefficient of the toxic compounds is deduced suggesting that essentially all of the toxic compounds in the dispersant will partition into solution in water following dispersant application to an oil spill. This conclusion simplifies interpretation and prediction of the toxic effects of a dispersed oil spill.The combined bioassay-partitioning procedure may have applications to the study of the toxicity of other complex mixtures such as industrial effluents. |
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| Keywords: | Correspondence should be addressed to P.G.W. at the Bedford Institute of Oceanography P.O. Box 1006 Dartmouth N.S. B2Y 4A2 or to D.M. at the University of Toronto. |
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