Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

First report on fate of underwater dispersants in Deepwater Horizon oil spill

27.01.2011
Scientists are reporting that key chemical components of the 770,000 gallons of oil dispersants applied below the ocean surface in the Deepwater Horizon spill did mix with oil and gas spewing out of the damaged wellhead and remained in the deep ocean for two months or more without degrading.

However, it was not possible to determine if the first deep ocean use of oil dispersants worked as planned in breaking up and dissipating the oil. Their study, the first peer-reviewed research published on the fate of oil dispersants added to underwater ocean environments, appears in ACS' journal Environmental Science & Technology.

Elizabeth Kujawinski and colleagues note ongoing concern about the environmental fate of the 1.4 million gallons of dispersant applied to the ocean surface and the 770,000 gallons of dispersant pumped to the mile-deep well head during the oil spill in the Gulf of Mexico. Many studies show that dispersants added to surface oil spills prevent them from coating and harming sensitive coastal environments, but no large-scale applications of dispersants in deep water had been conducted until the Deepwater Horizon oil spill. Thus, no data exists on the environmental fate of dispersants in deep water, the scientists say.

The scientists collected and analyzed seawater samples from the Gulf of Mexico for the presence of a key dispersant ingredient, called DOSS (dioctyl sodium sulfosuccinate), during the active oil flow and again after the flow had ceased. They found DOSS became concentrated in the deepwater plumes of suspended oil and gas at depths of up to three-quarters of a mile and did not mix with the surface applications of dispersant. They also detected the dispersant ingredient at distances of nearly 200 miles from the well two months after deepwater dispersant applications ceased, indicating it was not rapidly biodegraded. Their data is not sufficient to resolve whether the dispersant was effective in dispersing the oil coming out of the wellhead. However, the scientists argue that the persistence of the dispersant over long distances and time periods justifies further study of the effects of chemical dispersant and oil mixture exposure.

The authors acknowledge funding from the National Science Foundation, the Gordon and Betty Moore Foundation and from the Woods Hole Oceanographic Institution.

ARTICLE FOR IMMEDIATE RELEASE
"Fate of Dispersants Associated with the Deepwater Horizon Oil Spill"
Full Text available from: m_bernstein@acs.org
CONTACT:
Woods Hole Oceanographic Institution
News Media Office
508-289-3340

Michael Bernstein | EurekAlert!
Further information:
http://www.acs.org

More articles from Life Sciences:

nachricht A Map of the Cell’s Power Station
18.08.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

nachricht On the way to developing a new active ingredient against chronic infections
18.08.2017 | Deutsches Zentrum für Infektionsforschung

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

Engineering team images tiny quasicrystals as they form

18.08.2017 | Physics and Astronomy

Researchers printed graphene-like materials with inkjet

18.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>