Assessing the footprint and volume of oil deposited in deep-sea sediments following the Deepwater Horizon oil spill

被引：43

作者：

Stout, Scott A. ^{[1
]}

Rouhani, Shahrokh ^{[2
]}

Liu, Bo ^{[1
]}

Oehrig, Jacob ^{[2
]}

Ricker, Robert W. ^{[3
]}

Baker, Gregory ^{[4
]}

Lewis, Christopher ^{[5
]}

机构：

[1] NewFields Environm Forens Practice LLC, 300 Ledgewood Pl,Suite 305, Rockland, MA 02370 USA

[2] NewFields Atlanta LLC, 1349 W Peachtree St,Suite 2000, Atlanta, GA USA

[3] NOAA, Assessment & Restorat Div, 1410 Neotomas Ave,Suite 110, Santa Rosa, CA USA

[4] NOAA, Assessment & Restorat Div, 345 Middlefield Rd,MS-999, Menlo Pk, CA USA

[5] Ind Econ Inc, 2067 Massachusetts Ave,4th Floor, Cambridge, MA USA

来源：

MARINE POLLUTION BULLETIN | 2017年 / 114卷 / 01期

关键词：

Submerged oil; Benthic exposure; Chemical fingerprinting; Fallout plume; Hopane; PAH; MACONDO OIL; BIODEGRADATION; HYDROCARBONS;

D O I：

10.1016/j.marpolbul.2016.09.046

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The lateral and vertical extents of Macondo oil in deep-sea sediments resulting from the 2010 Deepwater Horizon oil spill were determined using chemical forensics and geostatistical kriging of data from 2397 sediment samples from 875 cores collected in 2010/2011 and 2014. The total mass of Macondo-derived hopane on the seafloor in 2010/2011 was conservatively estimated between 2.00 and 226 metric tons, derived from 219,000 to 247,000 barrels of oil; or 6.9 to 7.7% of the 3.19 million barrels spilled. Macondo-derived hopane was deposited over 1030 to 1910 km(2) of the seafloor, mostly (>97%) in surface (0-1 cm) and near-surface (1-3 cm) sediments, which is consistent with short-term oil deposition. Although Macondo oil was still present in surface sediments in 2014, the total mass of Macondo-derived hopane was significantly lower (similar to 80 to 90%) than in 2010/2011, affirming an acute impact from the spill and not long-term deposition from natural seeps. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：327 / 342

页数：16

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