Sediment penetration of Amoco Cadiz oil,potential for future release,and toxicity |
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| Authors: | JH Vandermeulen DE Buckley EM Levy BFN Long P McLaren PG Wells |
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| Institution: | Bedford Institute of Oceanography, Dartmouth, Nova Scotia B2Y 4A2, Canada |
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| Abstract: | Weathering states of oil ranging from sheen oil to mousse have significant effects during oil stranding on oil-water and oil-sediment interaction. Observations of oiled sandy beaches suggest two mechanisms of beach contamination—general penetration and contamination of beach substrate by films of sheen oil (probably partially emulsified), and secondly the burial of discrete layers of mousse. Depending on timing of oiling with respect to beach dynamics large amounts of stranded oil can be accommodated within beach sediments. These then become available for later long-term release.Acute lethal toxicity of stranded Amoco Cadiz oil is intermediate to Bunker C and Kuwait crude. Simulated weathering studies suggest that there may be some increase in toxicity with weathering. |
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