Changes in the volatile hydrocarbon content of Prudhoe Bay Crude Oil treated under different simulated weathering conditions |
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| Authors: | RG Riley BL Thomas JW Anderson RM Bean |
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| Institution: | Battelle Pacific Northwest Laboratories, Richland, Washington 99352, USA |
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| Abstract: | Changes have been determined in the concentrations of volatile saturate and aromatic hydrocarbons in Prudhoe Bay Crude Oil (PBC) weathered under three different simulated environmental conditions. A combination of light and water sprayed upon the surface of the oil produced the largest relative decreases in volatile saturate and most aromatic hydrocarbons. After 24 days, detectable amounts of monoaromatic hydrocarbons were absent in all three weathered oils, as were the saturate hydrocarbons from C8 to C10. Retention of aromatic hydrocarbons appeared to be related to molecular weight, as enrichments of triaromatics (phenanthrenes) were observed in weathered PBC relative to the original crude oil. These data are discussed with respect to effects resulting from spilled oil impacting benthic organisms residing in intertidal and shallow subtidal communities. |
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