Application of dispersants in shallow water remains an issue of debate within the spill response community. An experimental oil spill to evaluate potential environmental impacts and benefits of applying dispersants to spills in shallow water has therefore been under consideration. One site being considered was Matagorda Bay, on the Texas coast. Coupled three-dimensional oil spill and hydrodynam...

Human alteration of marine ecosystems is substantial and growing. Yet, no adequate methodology exists that provides reliable predictions of how environmental degradation will affect these ecosystems at a relevant level of biological organization. The primary objective of this study was to develop a methodology to evaluate a fish's capacity to face a well-established environmental challenge, an ...

Abstract Tier II/III SMART protocol for dispersant use requires placing fluorometers in the water and towing them under a slick by boat. To protect health of teams, boats typically remain at least 2 miles away from slicks during aerial treatment. After spray completes, transit into oil slicks. The time between completion initiation monitoring can be > 30 minutes. In minutes, dispersed pl...

Snapping turtle (Chelydra serpentina) eggs were exposed to two concentrations of chemically- or physically-dispersed water accommodated fractions of weathered Arabian light crude oil (Low=0.5 and High=10 g oil/L water). Solutions were passed through nest substrate to simulate alterations in composition during percolation to egg depth. Hatchlings were raised for 13 months during which numerous e...

T he BP Deepwater Horizon event released approximately 206 million gallons of crude oil into the Gulf of Mexico. 1 BP's primary strategy for handing this large spill was to use the dispersant COREXIT to disperse and mix this enormous volume of oil over a larger volume of seawater. This is the time-honored strategy of dilution as the solution to pollution. While this strategy appears to have bee...

A peptide aptamer, which was originally identified by affinity screening for hyperbranched poly(phenylene vinylene) (hypPPV), functioned as an excellent dispersant for hypPPV nanoparticle formation.

This study evaluated the effects of three commercial dispersants (Finasol OSR 52, Slickgone NS, Superdispersant 25) and biosurfactants (rhamnolipid, trehalolipid, sophorolipid) in crude-oil seawater microcosms. We analysed crucial early bacterial response (1 3 days). In contrast, most analyses miss this key period instead focus on later time points after oil dispersant addition. By focusing sta...

The disastrous consequences for society—economically, environmentally, and socially—caused by oil spills encouraged us to treat this problem. target of work is synthesize new amphiphilic dicationic ionic liquids (Ia, Ib, Ic) evaluate them spectroscopically gravimetrically as potential spill dispersants at different temperatures cover cold warm areas. synthesized ILs were well characterized tool...