Characterization of oil components from the Deepwater Horizon oil spill in the Gulf of Mexico using fluorescence EEM and PARAFAC techniques

Zhou, Zhengzhen; Guo, Laodong; Shiller, Alan M.; Lohrenz, Steven E.; Asper, Vernon; Osburn, Christopher L.

doi:10.1016/j.marchem.2012.10.003

Cited by 136 publications

(103 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(2010) have reported the presence of PAHs at concentrations reaching 189 μg/L in the Gulf of Mexico after the Deepwater Horizon oil spill where DOC was observed at 6 mg C/L (Zhou et al. 2013). The baseline values of DOC in the northern Gulf of Mexico were considerably lower (usually <1 mg C/L) before the Deepwater Horizon oil spill (Guo, Coleman and Santschi 1994; Guo, Santschi and Warnken 1995), highlighting the influence of released oil in DOC concentration.…”

Section: Abiotic Factors Determining the Fate Of Pahs In Marine Ecosymentioning

confidence: 99%

Role of environmental factors and microorganisms in determining the fate of polycyclic aromatic hydrocarbons in the marine environment

Duran¹,

Cravo‐Laureau²

2016

FEMS Microbiology Reviews

212

View full text Add to dashboard Cite

Polycyclic aromatic hydrocarbons (PAHs) are widespread in marine ecosystems and originate from natural sources and anthropogenic activities. PAHs enter the marine environment in two main ways, corresponding to chronic pollution or acute pollution by oil spills. The global PAH fluxes in marine environments are controlled by the microbial degradation and the biological pump, which plays a role in particle settling and in sequestration through bioaccumulation. Due to their low water solubility and hydrophobic nature, PAHs tightly adhere to sediments leading to accumulation in coastal and deep sediments. Microbial assemblages play an important role in determining the fate of PAHs in water and sediments, supporting the functioning of biogeochemical cycles and the microbial loop. This review summarises the knowledge recently acquired in terms of both chronic and acute PAH pollution. The importance of the microbial ecology in PAH-polluted marine ecosystems is highlighted as well as the importance of gaining further in-depth knowledge of the environmental services provided by microorganisms.

show abstract

Section: Abiotic Factors Determining the Fate Of Pahs In Marine Ecosymentioning

confidence: 99%

Role of environmental factors and microorganisms in determining the fate of polycyclic aromatic hydrocarbons in the marine environment

Duran¹,

Cravo‐Laureau²

2016

FEMS Microbiology Reviews

212

View full text Add to dashboard Cite

show abstract

“…With a density lower than that of seawater, the hydrocarbon mixture rose toward the surface. Due to dilution and dispersion, some of the rising hydrocarbons split off and formed a subsurface plume, whereas about half of the liquid hydrocarbons reached the sea surface, where a thick layer of oil formed (Atlas and Hazen, 2011;Diercks et al, 2010;Zhou et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Formation of rapidly-sinking, oil-associated marine snow

Passow

2016

Deep Sea Research Part II: Topical Studies in Oceanography

130

100

View full text Add to dashboard Cite

a b s t r a c tSignificant amounts of oil accumulated at the sea surface and in a subsurface plume during the Deepwater Horizon (DwH) spill in the Gulf of Mexico (GoM) in 2010. A substantial fraction of this oil was removed from the marine environment by mechanical recovery or burning, or it reached shorelines, whereas another fraction remained within the marine environment, where it dispersed (chemically or naturally), emulsified or sedimented. After the DwH accident the sedimentation of hydrocarbons to the seafloor via rapidly sinking, oil-associated marine snow has become a focus of attention, and it has been hypothesized that marine snow formation significantly impacted the distribution of the oil from the DwH spill.Here, roller table experiments are presented that investigated the conditions inducing the formation of oil-associated marine snow, focusing especially on the effects of oil type, photochemical aging of oil, and the presence of phytoplankton or dispersant. Large, mucus-rich marine snow, termed microbial marine snow, formed in treatments incubated with the oil that had accumulated at the sea surface. This bacteria-mediated formation of up to cm-sized marine snow in the absence of particles 41 mm, represents a unique formation pathway different from that of the physical coagulation of particles. Microbial marine snow, albeit smaller, also formed in the presence of crude oil that had been aged for Z3 weeks in sunlight, but no particles formed in the presence of unaltered crude. The dispersant Corexit 9500A (Corexit:oil ratio¼1:100) impeded the formation of microbial marine snow, requiring a re-evaluation of the benefits and detriments of Corexit 9500A as a mediating measure. Phytoplankton aggregates also incorporated fossil carbon, providing an alternate pathway for the formation of oil-associated marine snow. The ubiquitous formation and rapid sedimentation of oil-rich marine snow can explain the high accumulation rate of flocculent material at the seafloor and on corals observed after the DwH spill. These results may raise awareness that oil spill response and assessment need to include sedimentation of hydrocarbons via marine snow as a significant distribution mechanism and may guide future modeling efforts and budget calculations.

show abstract

“…These two fractions can be studied with absorption and fluorescence techniques and allow to gain qualitative information on DOM pool. Fluorescence has been extensively used to study the DOM dynamics, following the Deepwater Horizon Oil Spill , Zhou et al, 2013Ziervogel et al, 2012). Fluorescence analysis are fast, cheap, easily adaptable to the field, highly sensible and they do not need reagents and extensive sample pretreatments.…”

Section: Introductionmentioning

confidence: 99%

Dissolved organic matter dynamics in surface waters affected by oil spill pollution: Results from the Serious Game exercise

Gonnelli

Galletti

Marchetti

et al. 2016

Deep Sea Research Part II: Topical Studies in Oceanography

View full text Add to dashboard Cite

Characterization of oil components from the Deepwater Horizon oil spill in the Gulf of Mexico using fluorescence EEM and PARAFAC techniques

Cited by 136 publications

References 54 publications

Role of environmental factors and microorganisms in determining the fate of polycyclic aromatic hydrocarbons in the marine environment

Role of environmental factors and microorganisms in determining the fate of polycyclic aromatic hydrocarbons in the marine environment

Formation of rapidly-sinking, oil-associated marine snow

Dissolved organic matter dynamics in surface waters affected by oil spill pollution: Results from the Serious Game exercise

Contact Info

Product

Resources

About