Chemical data quantify Deepwater Horizon hydrocarbon flow rate and environmental distribution
Thomas B. Ryerson,Richard Camilli,John D. Kessler,Elizabeth B. Kujawinski,Christopher M. Reddy,David L. Valentine,Elliot Atlas,Donald R. Blake,Joost A. de Gouw,Joost A. de Gouw,Simone Meinardi,David D. Parrish,Jeff Peischl,Jeff Peischl,Jeffrey S. Seewald,Carsten Warneke,Carsten Warneke +16 more
TLDR
Detailed airborne, surface, and subsurface chemical measurements, primarily obtained in May and June 2010, are used to quantify initial hydrocarbon compositions along different transport pathways during the Deepwater Horizon oil spill, suggesting relatively little variation in leaking hydrocarbon composition over time.Abstract:
Detailed airborne, surface, and subsurface chemical measurements, primarily obtained in May and June 2010, are used to quantify initial hydrocarbon compositions along different transport pathways (i.e., in deep subsurface plumes, in the initial surface slick, and in the atmosphere) during the Deepwater Horizon oil spill. Atmospheric measurements are consistent with a limited area of surfacing oil, with implications for leaked hydrocarbon mass transport and oil drop size distributions. The chemical data further suggest relatively little variation in leaking hydrocarbon composition over time. Although readily soluble hydrocarbons made up ∼25% of the leaking mixture by mass, subsurface chemical data show these compounds made up ∼69% of the deep plume mass; only ∼31% of the deep plume mass was initially transported in the form of trapped oil droplets. Mass flows along individual transport pathways are also derived from atmospheric and subsurface chemical data. Subsurface hydrocarbon composition, dissolved oxygen, and dispersant data are used to assess release of hydrocarbons from the leaking well. We use the chemical measurements to estimate that (7.8 ± 1.9) × 106 kg of hydrocarbons leaked on June 10, 2010, directly accounting for roughly three-quarters of the total leaked mass on that day. The average environmental release rate of (10.1 ± 2.0) × 106 kg/d derived using atmospheric and subsurface chemical data agrees within uncertainties with the official average leak rate of (10.2 ± 1.0) × 106 kg/d derived using physical and optical methods.read more
Citations
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Environmental effects of the Deepwater Horizon oil spill: A review.
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Helen K. White,Pen Yuan Hsing,Walter Cho,Timothy M. Shank,Erik E. Cordes,Andrea M. Quattrini,Robert K. Nelson,Richard Camilli,Amanda W.J. Demopoulos,Christopher R. German,James M. Brooks,Harry H. Roberts,William Shedd,Christopher M. Reddy,Charles R. Fisher +14 more
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Oil weathering after the Deepwater Horizon disaster led to the formation of oxygenated residues.
Christoph Aeppli,Catherine A. Carmichael,Robert K. Nelson,Karin L. Lemkau,William M. Graham,Molly C. Redmond,David L. Valentine,Christopher M. Reddy +7 more
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References
More filters
Journal ArticleDOI
Deep-sea oil plume enriches indigenous oil-degrading bacteria.
Terry C. Hazen,Eric A. Dubinsky,Todd Z. DeSantis,Gary L. Andersen,Yvette M. Piceno,Navjeet Singh,Janet K. Jansson,Alexander J. Probst,Sharon Borglin,Julian L. Fortney,William T. Stringfellow,William T. Stringfellow,Markus Bill,Mark E. Conrad,Lauren M. Tom,Krystle L. Chavarria,Thana R. Alusi,Regina Lamendella,Dominique C. Joyner,Chelsea Spier,Jacob Bælum,Manfred Auer,Marcin Zemla,Romy Chakraborty,Eric Sonnenthal,Patrik D'haeseleer,Hoi-Ying N. Holman,Shariff Osman,Zhenmei Lu,Joy D. Van Nostrand,Ye Deng,Jizhong Zhou,Jizhong Zhou,Olivia U. Mason +33 more
TL;DR: It is reported that the dispersed hydrocarbon plume stimulated deep-sea indigenous γ-Proteobacteria that are closely related to known petroleum degraders, and the potential exists for intrinsic bioremediation of the oil plume in the deep-water column without substantial oxygen drawdown.
Journal ArticleDOI
Fate of Dispersants Associated with the Deepwater Horizon Oil Spill
Elizabeth B. Kujawinski,Melissa C. Kido Soule,David L. Valentine,Angela K. Boysen,Angela K. Boysen,Krista Longnecker,Molly C. Redmond +6 more
TL;DR: It is shown that DOSS was sequestered in deepwater hydrocarbon plumes at 1000-1200 m water depth and did not intermingle with surface dispersant applications, and underwent negligible, or slow, rates of biodegradation in the affected waters.
Journal ArticleDOI
Tracking Hydrocarbon Plume Transport and Biodegradation at Deepwater Horizon
Richard Camilli,Christopher M. Reddy,Dana R. Yoerger,Benjamin A. S. Van Mooy,Michael V. Jakuba,James C. Kinsey,Cameron McIntyre,Sean P. Sylva,James V. Maloney +8 more
TL;DR: Results from a subsurface hydrocarbon survey using an autonomous underwater vehicle and a ship-cabled sampler indicate the presence of a continuous plume of oil, more than 35 kilometers in length, at approximately 1100 meters depth that persisted for months without substantial biodegradation.
Journal ArticleDOI
Composition and fate of gas and oil released to the water column during the Deepwater Horizon oil spill
Christopher M. Reddy,J. Samuel Arey,Jeffrey S. Seewald,Sean P. Sylva,Karin L. Lemkau,Robert K. Nelson,Catherine A. Carmichael,Cameron McIntyre,Judith Fenwick,G. Todd Ventura,Benjamin A. S. Van Mooy,Richard Camilli +11 more
TL;DR: Comparison of the endmember gas and oil composition with the composition of water column samples showed that the plume was preferentially enriched with water-soluble components, indicating that aqueous dissolution played a major role in plume formation, whereas the fates of relatively insoluble petroleum components were initially controlled by other processes.
Journal ArticleDOI
Magnitude of the 2010 Gulf of Mexico Oil Leak
Timothy J. Crone,Maya Tolstoy +1 more
TL;DR: In this paper, the authors used optical plume velocimetry to estimate the velocity of fluids issuing from the damaged well both before and after the collapsed riser pipe was removed, and calculated the volumetric flow rate under a range of assumptions.
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