A Role for Analytical Chemistry in Advancing our Understanding of the Occurrence, Fate, and Effects of Corexit Oil Dispersants

Place, Benjamin J.; Anderson, Brian S.; Mekebri, Abdou; Furlong, Edward T.; Gray, James L.; Tjeerdema, Ron S.; Field, Jennifer A.

doi:10.1021/es102319w

Cited by 44 publications

(27 citation statements)

References 3 publications

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“…Corexit 9500 is approved for use in a variety of oil spill situations and is effective at dispersing oil, yet its chemical fate in aquatic ecosystems is not well characterized (Place et al 2010). Due to the proprietary nature of many dispersants, formulation-specific analytical methods have been slow to emerge.…”

Section: Introductionmentioning

confidence: 99%

Embryotoxicity of Corexit 9500 in mallard ducks (Anas platyrhynchos)

2011

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Embryotoxicity of the oil dispersant Corexit 9500 was examined using fertilized mallard duck eggs. Corexit 9500 was topically applied below the air cell to eggs in volumes ranging from 0 to 100 μL on day 3 of incubation. The highest incidence of mortality occurred at developmental stage 4, one day post-Corexit 9500 application. Hatching success was significantly decreased among eggs treated with ≥ 20 μL of Corexit 9500 as compared to controls (P ≤ 0.047). No egg treated with ≥ 40 μL successfully hatched. The application volume resulting in 50% mortality (corrected for control survival) was determined to be 15.5 μL. Developmental stage at embryo death was also significantly decreased compared to controls in eggs exposed to 40 μL (P = 0.0042) and above.

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Section: Introductionmentioning

confidence: 99%

Embryotoxicity of Corexit 9500 in mallard ducks (Anas platyrhynchos)

2011

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“…In contrast, Corexit 9500 activated the virus with a double protein capsid, CSV. Although the complete formulation of Corexit 9500 is not available, the components include alcohols, such as 1-propanol, and nonionic and anionic surfactants which are used in detergents (3)(4)(5)24). The interaction of these components with the four viruses is discussed below, followed by a consideration of the environmental implications of the results.…”

Section: Discussionmentioning

confidence: 99%

“…These spills are often treated with dispersants, such as Corexit 9500. The exact composition of Corexit is proprietary, but in general terms, the ingredients include anionic surfactants, nonionic surfactants, and organic solvents (3)(4)(5). The dispersants function by breaking down large oil pools into small oil droplets, allowing them to sink into the water column.…”

mentioning

confidence: 99%

Corexit 9500 Inactivates Two Enveloped Viruses of Aquatic Animals but Enhances the Infectivity of a Nonenveloped Fish Virus

Pham

Huang

Chen

et al. 2014

Appl Environ Microbiol

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The effects of Corexit 9500, a dispersant used to clean up oil spills, on invertebrates, lower vertebrates, birds, and human health have been examined, but there is a significant lack of study of the effect of this dispersant on aquatic viruses. In this study, the effects of Corexit 9500 on four aquatic viruses of differing structural composition were examined. Corexit 9500 reduced the titer of the enveloped viral hemorrhagic septicemia virus (VHSV) at all concentrations (10% to 0.001%) examined. The titer of frog virus 3 (FV3), a virus with both enveloped and nonenveloped virions, was reduced only at the high Corexit 9500 concentrations (10% to 0.1%). Corexit 9500 was unable to reduce the titer of nonenveloped infectious pancreatic necrosis virus (IPNV) but enhanced the titer of chum salmon reovirus (CSV) by 2 to 4 logs. With the ability to inactivate enveloped viruses and possibly enhance some nonenveloped viruses, Corexit 9500 has the potential to alter the aquatic virosphere.

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“…as the 2-butoxyethanol signal was observed to decrease rapidly with increasing heater observations (Place et al, 2010) that showed a straightforward ionization of this analyte using electrospray ionization operating in the negative mode. This is expected as the DOSS anion is the conjugate base of the very strong dioctyl sulfosuccinic acid (pK a = 0.08±0.5) 2 thus has a weak basic character and does not protonate upon desolvation in the ESI interface.…”

Section: Mass Spectrometry Detectionmentioning

confidence: 90%

Novel Analytical Methodologies for the Monitoring of Traditional and Non-traditional Pollutants in different Environmental Compartments of South Florida

Ramírez¹

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A Role for Analytical Chemistry in Advancing our Understanding of the Occurrence, Fate, and Effects of Corexit Oil Dispersants

Abstract: Author’s viewpoint

Cited by 44 publications

References 3 publications

Embryotoxicity of Corexit 9500 in mallard ducks (Anas platyrhynchos)

Embryotoxicity of Corexit 9500 in mallard ducks (Anas platyrhynchos)

Corexit 9500 Inactivates Two Enveloped Viruses of Aquatic Animals but Enhances the Infectivity of a Nonenveloped Fish Virus

Novel Analytical Methodologies for the Monitoring of Traditional and Non-traditional Pollutants in different Environmental Compartments of South Florida

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