Results 41 to 50 of about 795 (175)

Photochemical fate of solvent constituents of Corexit oil dispersants

Water Research, 2014
In 2010, an estimated 1.87 million gallons (7079 cubic meters) of chemical dispersants were applied to open ocean waters in the Gulf of Mexico as part of the response to the Deepwater Horizon blowout. This unprecedented volume of dispersant application highlighted the importance of dispersant chemical formulations, raising questions of dispersant fate ...
Stephanie C, Kover, Fernando L, Rosario-Ortiz, Karl G, Linden   +2 more
openaire   +3 more sources

Aggregation and Degradation of Dispersants and Oil by Microbial Exopolymers (ADDOMEx): Toward a Synthesis of Processes and Pathways of Marine Oil Snow Formation in Determining the Fate of Hydrocarbons

Frontiers in Marine Science, 2021
Microbes (bacteria, phytoplankton) in the ocean are responsible for the copious production of exopolymeric substances (EPS) that include transparent exopolymeric particles. These materials act as a matrix to form marine snow.
Antonietta Quigg, Antonietta Quigg, Peter H. Santschi, Peter H. Santschi, Chen Xu, Kai Ziervogel, Manoj Kamalanathan, Wei-Chun Chin, Adrian B. Burd, Andrew Wozniak, Andrew Wozniak, Patrick G. Hatcher   +11 more
doaj   +1 more source

Heme oxygenase-1 protects corexit 9500A-induced respiratory epithelial injury across species. [PDF]

PLoS ONE, 2015
The effects of Corexit 9500A (CE) on respiratory epithelial surfaces of terrestrial mammals and marine animals are largely unknown. This study investigated the role of CE-induced heme oxygenase-1 (HO-1), a cytoprotective enzyme with anti-apoptotic and ...
Fu Jun Li, Ryan N Duggal, Octavio M Oliva, Suman Karki, Ranu Surolia, Zheng Wang, R Douglas Watson, Victor J Thannickal, Mickie Powell, Stephen Watts, Tejaswini Kulkarni, Hitesh Batra, Subhashini Bolisetty, Anupam Agarwal, Veena B Antony   +14 more
doaj   +1 more source

Extracellular Enzyme Activity Profile in a Chemically Enhanced Water Accommodated Fraction of Surrogate Oil: Toward Understanding Microbial Activities After the Deepwater Horizon Oil Spill

Frontiers in Microbiology, 2018
Extracellular enzymes and extracellular polymeric substances (EPS) play a key role in overall microbial activity, growth and survival in the ocean.
Manoj Kamalanathan, Chen Xu, Kathy Schwehr, Laura Bretherton, Morgan Beaver, Shawn M. Doyle, Jennifer Genzer, Jessica Hillhouse, Jason B. Sylvan, Peter Santschi, Peter Santschi, Antonietta Quigg, Antonietta Quigg   +12 more
doaj   +1 more source

Biochemical toxicity of Corexit 9500 dispersant on the gills, liver and kidney of juvenile Clarias gariepinus

Fisheries and Aquatic Sciences, 2019
Corexit 9500 is a dispersant commercially available in Nigeria that is used to change the inherent chemical and physical properties of oil, thereby changing the oil’s transport and fate with potential effects on the environment. The aim of this study was
A. P. Ugbomeh, K. N. O. Bob-manuel, A. Green, O. Taylorharry   +3 more
doaj   +1 more source

Characterization of the differential expressed genes and transcriptomic pathway analysis in the liver of sub-adult red drum (Sciaenops ocellatus) exposed to Deepwater Horizon chemically dispersed oil

Ecotoxicology and Environmental Safety, 2021
The Deepwater Horizon blowout resulted in the second-largest quantity of chemical dispersants used as a countermeasure for an open water oil spill in the Gulf of Mexico.
Tracy A. Sherwood, Maria L. Rodgers, Andrea M. Tarnecki, Dana L. Wetzel   +3 more
doaj   +1 more source

MODIFICATION OF THE DISPERSANT COREXIT®9500 FOR USE IN FRESHWATER [PDF]

International Oil Spill Conference Proceedings, 2001
ABSTRACT Recent inland spills in Latin America have generated interest in dispersant use for freshwater oil spills. However, oil spill dispersants primarily are formulated for use in marine waters. Dispersants that are designed for saltwater use show reduced effectiveness when applied in freshwater.
Anita George-Ares, Richard R. Lessard, Gerard P. Canevari, Kenneth W. Becker, Robert J. Fiocco   +4 more
openaire   +1 more source

Oil Spills and Human Health: Contributions of the Gulf of Mexico Research Initiative

GeoHealth, Volume 3, Issue 12, Page 391-406, December 2019., 2019
Abstract The Gulf of Mexico Research Initiative (GoMRI) was established in 2010 with $500 million in funding provided by British Petroleum over a 10‐year period to support research on the impacts of the Deepwater Horizon oil spill and recovery. Contributions of the GoMRI program to date focused on human health are presented in more than 32 peer ...
Ruth L. Eklund, Landon C. Knapp, Paul A. Sandifer, Rita C. Colwell   +3 more
wiley   +1 more source

Natural sunlight shapes crude oil-degradingbacterial communities in northern Gulf of Mexico surface waters

Frontiers in Microbiology, 2015
Following the Deepwater Horizon (DWH) spill in 2010, an enormous amount of oil was observed in the deep and surface waters of the northern Gulf of Mexico. Surface waters are characterized by intense sunlight and high temperature during summer.
Hernando P Bacosa, Zhanfei eLiu, Deana L Erdner   +2 more
doaj   +1 more source

Oil toxicity test methods must be improved

Environmental Toxicology and Chemistry, Volume 38, Issue 2, Page 302-311, February 2019., 2019
Current oil toxicity test methods affect the stability and composition of oil solutions, causing errors and uncertainty in ecological risk assessments of oil spills. Improved approaches are needed to generate reliable benchmarks and to understand how site‐specific experiment conditions affect oil toxicity.
Peter V. Hodson, Julie Adams, R. Stephen Brown   +2 more
wiley   +1 more source