期刊
MARINE POLLUTION BULLETIN
卷 79, 期 1-2, 页码 268-277出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2013.11.029
关键词
Photooxidation; Oil spills; Oil fingerprinting; Polycyclic aromatic hydrocarbons; Triaromatic steranes
资金
- NSF [OCE-0960841, RAPID OCE-1043976, RAPID OCE-1042097, EAR-0950600, OCE-0961725, OCE-1333148]
- BP/the Gulf of Mexico Research Initiative [GoMRI-015]
- DEEP-C consortium
- MIC-INN of Spain [CTM2008-02718-E/MAR, CTM2008-02721-E/MAR, ERAC-CT2005-016165]
- EU
- Spanish National Council of Research (CSIC)
- European Social Fund (ESF)
- Swiss National Science Foundation
Understanding weathering processes plays a critical role in oil spill forensics, which is based on the comparison of the distributions of selected compounds assumed to be recalcitrant and/or have consistent weathering transformations. Yet, these assumptions are based on limited laboratory and oil-spill studies. With access to additional sites that have been oiled by different types of oils and exposures, there is a great opportunity to expand on our knowledge about these transformations. Here, we demonstrate the effects of photooxidation on the overall composition of spilled oils caused by natural and simulated sunlight, and particularly on the often used polycyclic aromatic hydrocarbons (PAHs) and the biomarker triaromatic steranes (TAS). Both laboratory and field data from oil released from the Macondo well oil following the Deepwater Horizon disaster (2010), and heavy fuel-oil from the Prestige tanker spill (2002) have been obtained to improve the data interpretation of the typical fingerprinting methodology. (C) 2013 Elsevier Ltd. All rights reserved.
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