Report: Dispersant Chemicals Lingering in the Gulf

Photo courtesy of the <a href="http://cgvi.uscg.mil/media/main.php?g2_itemId=524487&g2_imageViewsIndex=1">US Coast Guard</a>.

Fight disinformation: Sign up for the free Mother Jones Daily newsletter and follow the news that matters.


For MoJo environmental correspondent Julia Whitty’s take on the BP dispersants study, click here.

In the weeks after the Deepwater Horizon disaster, BP—with the consent of federal regulators—spread 1.8 million gallons of dispersants on the surface of the Gulf and at the wellhead a mile below. Using dispersants in this volume and at this depth was unprecedented, and there wasn’t a great understanding of the implications. Now a new report indicates that some of the chemical components of the dispersants might remain in the Gulf for months.

The report, from scientists at Woods Hole Oceanographic Institution, finds that dispersant components aren’t breaking down all that fast, lingering in plumes of undersea oil and gas that researchers have been studying. This should “raise questions about what impact the deep-water residue of oil and dispersant—which some say has its own toxic effects—might have had on environment and marine life in the Gulf,” the Institute said in a release this week.

The lead author on the report was chemist Elizabeth B. Kujawinski, and it appeared this week in the American Chemical Society journal Environmental Science & Technology. Researchers found a component of the chemical dispersant, dioctyl sodium sulfosuccinate, up to 200 miles from the wellhead. They were also still finding the chemical two to three months after the injections. This would indicate that the mixture was not biodegrading rapidly, the scientists concluded. The report did not, however, evaluate the toxicity of the lingering components, though it does indicate that there should be more investigation into the effects the chemicals may have on the Gulf.

The EPA acknowledged that BP’s use of dispersants was a massive, real-time science experiment, but has said it believed the use was justified and better than the alternative—not using them at all. A later report from the National Oil Spill Commission also endorsed their use while arguing that the agency should have been better prepared to make informed decisions on dispersants. This latest research is certainly evidence that more work needs to be done to understand the full impacts of these chemicals.

We've never been very good at being conservative.

And usually, that serves us well in doing the ambitious, hard-hitting journalism that you turn to Mother Jones for. But it also means we can't afford to come up short when it comes to scratching together the funds it takes to keep our team firing on all cylinders, and the truth is, we finished our budgeting cycle on June 30 about $100,000 short of our online goal.

This is no time to come up short. It's time to fight like hell, as our namesake would tell us to do, for a democracy where minority rule cannot impose an extreme agenda, where facts matter, and where accountability has a chance at the polls and in the press. If you value our reporting and you can right now, please help us dig out of the $100,000 hole we're starting our new budgeting cycle in with an always-needed and always-appreciated donation today.

payment methods

We've never been very good at being conservative.

And usually, that serves us well in doing the ambitious, hard-hitting journalism that you turn to Mother Jones for. But it also means we can't afford to come up short when it comes to scratching together the funds it takes to keep our team firing on all cylinders, and the truth is, we finished our budgeting cycle on June 30 about $100,000 short of our online goal.

This is no time to come up short. It's time to fight like hell, as our namesake would tell us to do, for a democracy where minority rule cannot impose an extreme agenda, where facts matter, and where accountability has a chance at the polls and in the press. If you value our reporting and you can right now, please help us dig out of the $100,000 hole we're starting our new budgeting cycle in with an always-needed and always-appreciated donation today.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate