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Dissolving oil in a sunlit sea

A team of Woods Hole Oceanographic Institution (WHOI) researchers discovered that nearly 10 percent of the oil floating on the Gulf after the Deepwater Horizon disaster was dissolved into seawater by sunlight – a process called “photo-dissolution”. The findings were published today in the paper “Sunlight-driven dissolution is a major fate of oil at sea” in Science Advances.

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What did scientists learn from Deepwater Horizon?

Ten years after the Deepwater Horizon explosion caused the largest accidental marine oil spill in history, WHOI marine geochemists Elizabeth Kujawinski and Christopher Reddy review what they— and their science colleagues from around the world—have learned.

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Sunlight Reduces Effectiveness of Dispersants Used in Oil Spills

Sunlight Reduces Effectiveness of Dispersants Used in Oil Spills

A research team led by Woods Hole Oceanographic Institution (WHOI) found that sunlight chemically alters crude oil floating on the sea surface within hours or days. In a follow-up study the team reported that sunlight changes oil into different compounds that dispersants cannot easily break up. The results of these two studies could affect how responders decide when, where, and how to use dispersants.

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Dispersants Improved Air Quality for Responders at Deepwater Horizon

Dispersants Improved Air Quality for Responders at Deepwater Horizon

A study published Aug. 28, 2017, in the Proceedings of the National Academy of Sciences adds a new dimension to the controversial decision to inject large amounts of chemical dispersants immediately above the crippled oil well at the seafloor during the Deepwater Horizon disaster in 2010. The dispersants may have significantly reduced the amount of harmful gases in the air at the sea surface’”diminishing health risks for emergency responders and allowing them to keep working to stop the uncontrolled spill and clean up the spilled oil sooner.

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Study Provides Some Answers to Fate of Deepwater Horizon Oil

Nearly five years after the Deepwater Horizon explosion spilled roughly 200 million gallons of oil into the Gulf of Mexico, scientists are still working to answer the question: Where did all the oil go?

A paper published today in the Proceedings of the National Academy of Sciences provides a piece of the puzzle with an analysis of the oil that ended up on the seafloor, establishing its footprint, rough quantity and likely deposition mode, and pegging its source to that deep ocean plume of oil.

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WHOI-Led Study Sharpens Picture of How Much Oil and Gas Flowed in Deepwater Horizon Spill

In a detailed assessment of the Deepwater Horizon oil spill, researchers led by a team from the Woods Hole Oceanographic Institution (WHOI) have determined that the blown-out Macondo well spewed oil at a rate of about 57,000 barrels a day, totaling nearly 5 million barrels of oil released from the well between April 20 and July 15, 2010, when the leak was capped. In addition, the well released some 100 million standard cubic feet per day of natural gas.

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WHOI Scientists Analyze, Explain the Chemical Makeup of Gulf Plume

Taking another major step in sleuthing the 2010 Deepwater Horizon oil spill, a research team led by the Woods Hole Oceanographic Institution (WHOI) has determined what chemicals were contained in a deep, hydrocarbon-containing plume at least 22 miles long that WHOI scientists mapped and sampled last summer in the Gulf of Mexico, a residue of the Deepwater Horizon oil spill.

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First Study of Dispersants in Gulf Spill Suggests a Prolonged Deepwater Fate

To combat last year?s Deepwater Horizon oil spill, nearly 800,000 gallons of chemical dispersant were injected directly into the oil and gas flow coming out of the wellhead nearly one mile deep in the Gulf of Mexico. Now, as scientists begin to assess how well the strategy worked at breaking up oil droplets, Woods Hole Oceanographic Institution (WHOI) chemist Elizabeth B. Kujawinski and her colleagues report that a major component of the dispersant itself was contained within an oil-gas-laden plume in the deep ocean and had still not degraded some three months after it was applied.

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WHOI Website Will Take Viewers Deep into the Gulf

It may take years before scientists determine the full impact of the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. But, utilizing the human-occupied submersible Alvin and the autonomous underwater vehicle (AUV) Sentry, researchers are about to investigate?and view first-hand?the possible effects of the spill at the bottom of the Gulf. And, from Dec. 6-14, the mission will be relayed to the public as it happens on the Woods Hole Oceanographic Institution?s (WHOI) Dive and Discover website (http://divediscover.whoi.edu).

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WHOI Scientists Map and Confirm Origin of Large, Underwater Hydrocarbon Plume in Gulf

Scientists at the Woods Hole Oceanographic Institution (WHOI) detected and characterized a plume of hydrocarbons that is at least 22 miles long and more than 3,000 feet below the surface of the Gulf of Mexico, a residue of the BP Deepwater Horizon oil spill. The work presents a forensic snapshot of the plume characteristics in June and is reported in a study appearing in the Aug. 19 issue of the journal Science.

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