Navigation Links
New study reveals aerosol plumes downwind of the Deepwater Horizon oil spill
Date:3/10/2011

MIAMI March 10, 2011 -- Scientists from the University of Miami (UM) Rosenstiel School of Marine & Atmospheric Science were part of a national research team to find two plumes of oil-based pollutants downwind of the BP Deep Water Horizon oil spill. In a study published in this week's issue of the journal Science, the research team offers new insight into the mechanism by which the crude oil traveled from the sea surface to the atmosphere.

The National Oceanic and Atmospheric Administration (NOAA)-led research team collected data of atmosphere gas and aerosol concentrations during two flights, on June 8 and June 10, aboard a specially equipped NOAA WP-3 Orion aircraft.

"By having such a well-defined source of the evaporating oil we were able to investigate how aerosols form in the atmosphere," said UM Rosenstiel School Professor of Marine and Atmospheric Chemistry Elliot Atlas, a co-author of the paper. Atlas regularly uses similar techniques to study aerosol formation and air pollution downwind of major U.S. cities, such as Boston and Los Angeles.

The data revealed that two plumes of hydrocarbons were released into the atmosphere by the surface oil and from the smoke associated with the burning of oil during cleanup efforts. The first was a narrower three-kilometer (1.8-mile) wide hydrocarbon plume downwind of the spill site. The researchers suggest that this was the result of "direct evaporation of fresh oil on the sea surface."

The second, a larger 40-kilometer (24-mile)-wide plume, contained higher concentrations of organic aerosols and was "formed from vapors released from the oil and the condensation of their atmospheric oxidation products onto existing particles," according to the study's authors. The wider oil vapor-based plume contributed to the formation of secondary organic aerosols, which are the result of oil vapor reacting in the atmosphere. The researchers observed that methane and other light hydrocarbons dissolved in the water column, while other, less volatile components of crude oil, made their way to the surface and into the atmosphere.

Claire Paris, a UM Rosenstiel School assistant professor of Applied Marine Physics, and UM Rosenstiel School researcher Matthieu Le Hnaff, in collaboration with Ashwanth Srinivasan of UM's Center for Computational Science produced numerical simulations of the oil spill during and following the airborne measurements by the NOAA-led team.

"These simulations of fresh oil reaching the sea surface and aged oil spreading in a wider area downwind are key to understanding the evaporation processes of more or less volatile hydrocarbon compounds," said Paris, a biophysical modeler. "The model predictions that included oil behavior, advection, and wind drift helped link the measured organic aerosols to their source and mechanism of emission."

UM Rosenstiel School co-investigators Paris, Srinivasan and Meteorology and Physical Oceanography Research Associate Professor Villy Kourafalou were awarded a National Science Foundation RAPID grant in July 2010 to model the three-dimensional dynamics of the oil spill and assess its fate and extent.

This study provides researchers with a more comprehensive understanding of the effects of air pollutants and their secondary chemical products on the environment, human health and global climate change.

"The study also shows the benefit of having the right scientific capabilities available for rapid hazard response," said Atlas, who was part of a research team studying air quality in California that was called in to take air measurements during the oil spill. "It was fortuitous that we were able to get out there quickly with the necessary instruments and expertise, which turned out to be very useful."


'/>"/>

Contact: Barbra Gonzalez
barbgo@rsmas.miami.edu
305-421-4704
University of Miami Rosenstiel School of Marine & Atmospheric Science
Source:Eurekalert  

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. £2 million study to reveal workings of dementia genes
3. New study looks to define evangelicals and how they affect polling
4. CU-Boulder study suggests air quality regulations miss key pollutants
5. Researchers study acoustic communication in deep-sea fish
6. Study reveals homeowner perceptions in fire-prone areas
7. Researchers study how pistachios may improve heart health
8. Study: urban black bears live fast, die young
9. New study indicates link between weight gains during pregnancy and dieting history
10. Study reveals specific gene in adolescent men with delinquent peers
11. Sweat it out: UH study examines ability of sweat patches to monitor bone loss
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New study reveals aerosol plumes downwind of the Deepwater Horizon oil spill
(Date:4/26/2016)... 2016 Research and Markets has ... Market 2016-2020"  report to their offering.  , ,     ... The analysts forecast the global multimodal biometrics market ... the period 2016-2020.  Multimodal biometrics is ... as the healthcare, BFSI, transportation, automotive, and government ...
(Date:4/13/2016)... physicians supporting Medicaid patients in Central Florida ... telehealth thanks to a new partnership with higi.   ... can routinely track key health measurements, such as blood ... they opt in, share them with IMPOWER clinicians through ... location at no cost. By leveraging this data, IMPOWER ...
(Date:3/22/2016)... India , March 22, 2016 /PRNewswire/ ... market research report "Electronic Sensors Market for Consumer ... Proximity, & Others), Application (Communication & IT, ... Geography - Global Forecast to 2022", published ... industry is expected to reach USD 26.76 ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016 A person commits ... the crime scene to track the criminal down. ... U.S. Food and Drug Administration (FDA) uses DNA evidence to ... Sound far-fetched? It,s not. The FDA has ... to support investigations of foodborne illnesses. Put as simply as ...
(Date:6/23/2016)... NEW YORK , June, 23, 2016  The ... students to envision new ways to harness living systems ... of Modern Art (MoMA) in New York ... more than 130 participating students, showcased projects at MoMA,s ... included Paola Antonelli , MoMA,s senior curator of ...
(Date:6/23/2016)... ... 23, 2016 , ... In a new case report published today in STEM ... who developed lymphedema after being treated for breast cancer benefitted from an injection of ... dealing with this debilitating, frequent side effect of cancer treatment. , Lymphedema ...
(Date:6/23/2016)... YORK , June 23, 2016 ... trading session at 4,833.32, down 0.22%; the Dow Jones Industrial ... S&P 500 closed at 2,085.45, down 0.17%. Stock-Callers.com has initiated ... INFI ), Nektar Therapeutics (NASDAQ: NKTR ), ... Therapeutics Inc. (NASDAQ: BIND ). Learn more about ...
Breaking Biology Technology: