Sediment hydrocarbon contamination at the site of the Baie Verte,Newfoundland, oil spill: Results of a Four Year Study |
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| Institution: | 1. Department of Ecoscience, Aarhus University, Frederiksborgvej 399, DK-4000 Roskilde, Denmark;2. Department of Marine Systems, Tallinn University of Technology, Akadeemia tee 15, EE-15199 Tallinn, Estonia;1. Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China;2. Laboratory for Marine Ecology and Environmental Science, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266071, China |
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| Abstract: | Sediments samples were taken at 3, 15, 27, and 39 months following a spill of diesel oil at Baie Verte, Newfoundland, to determine the effects of weathering on diesel oil trapped in the sediments and to attempt to develop a suitable method for extraction and analysis.Extraction was carried out using hexane, concentration was effected by a procedure modified from Junk et al. (1974) and analysis was completed within 18.0 min by high performance liquid chromatography (HPLC) using a bonded amino silane-(NH2) column (5 μm, 5 mm × 25 cm) with hexane as mobile phase. A backflush cycle of 22.0 min using hexane and methl-t-butyl ether (90:10%) was performed to elute any polar compounds from the column.This class analysis by HPLC indicated a decrease in the amount of naphthalene, fluorene, phenanthrene and benzoa]pyrene equivalents over time and at the conclusion of the study (39 months) no PAHs except for fluorene were found in the sediments from Baie Verte. |
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