globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2017.10.059
Scopus记录号: 2-s2.0-85032953535
论文题名:
Characterization and flux of marine oil snow settling toward the seafloor in the northern Gulf of Mexico during the Deepwater Horizon incident: Evidence for input from surface oil and impact on shallow shelf sediments
作者: Stout S.A.; German C.R.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 129, 期:2
起始页码: 695
结束页码: 713
语种: 英语
英文关键词: Benthos ; Biomarkers ; Chemical fingerprinting ; Gulf of Mexico ; Sediment trap
Scopus关键词: Biomarkers ; Chemical analysis ; Polycyclic aromatic hydrocarbons ; Sediment traps ; Sediments ; Background value ; Benthos ; Chemical fingerprinting ; Deepwater Horizon oil spills ; Deepwater horizons ; Gulf of Mexico ; Northern Gulf of Mexico ; Shelf sediment ; Oil spills
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: Sediment trap samples from the shelf edge area (400-450 m water depth), 58 km northeast of the failed Macondo well, were collected before, during and after the Deepwater Horizon oil spill. Detailed chemical analyses of particulates revealed that fluxes of spill-derived TPH (2356 μg/m2/day), total PAH (5.4 μg/m2/day), and hopane (0.89 μg/m2/day) settling to the seafloor directly beneath the surface-plume were 19- to 44-times higher during the active spill than pre- and post-spill background values. The oil was variably biodegraded, evaporated and photo-oxidized indicating that it derived from the sinking of surface oil. The hopane-based oil flux that we calculate (10 bbl/km2) indicates that at least 76,000 bbl of Macondo oil that reached the ocean surface subsequently sank over an area of approximately 7600 km2. We explore how this flux of sunken surface oil contributed to the total volume of oil deposited on the seafloor following the Deepwater Horizon incident. © 2017 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86653
Appears in Collections:过去全球变化的重建
全球变化的国际研究计划

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作者单位: NewFields Environmental Forensics Practice, LLC, Rockland, MA, United States; Woods Hole Oceanographic Institution, Woods Hole, MA, United States

Recommended Citation:
Stout S.A.,German C.R.. Characterization and flux of marine oil snow settling toward the seafloor in the northern Gulf of Mexico during the Deepwater Horizon incident: Evidence for input from surface oil and impact on shallow shelf sediments[J]. Marine Pollution Bulletin,2018-01-01,129(2)
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