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Dispersant Makes Oil 52 Times More Toxic
Live Science ^ | November 30, 2012 | Douglas Main

Posted on 12/02/2012 6:31:17 AM PST by Altariel

For microscopic animals living in the Gulf, even worse than the toxic oil released during the 2010 Deepwater Horizon disaster may be the very oil dispersants used to clean it up, a new study finds.

More than 2 million gallons (7.5 million liters) of oil dispersants called Corexit 9527A and 9500A were dumped into the Gulf of Mexico in an effort to prevent oil from reaching shore and to help it degrade more quickly.

However, when oil and Corexit are combined, the mixture becomes up to 52 times more toxic than oil alone, according to a study published online this week in the journal Environmental Pollution.

There is a synergistic interaction between crude oil and the dispersant that makes it more toxic," said Terry Snell, a study co-author and biologist at Georgia Tech. Using dispersants breaks up the oil into small droplets and makes it less visible, but, "on the other hand, makes it more toxic to the planktonic food chain," Snell told LiveScience.

(Excerpt) Read more at livescience.com ...


TOPICS: Miscellaneous; Pets/Animals
KEYWORDS: bpoil; bpoilspill; corexit; dispersant; gulfoilspill; oil

1 posted on 12/02/2012 6:31:30 AM PST by Altariel
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To: Altariel

Of course the EPA can’t be reached for comment. The studies conflict with their version of reality.


2 posted on 12/02/2012 6:37:21 AM PST by Renderofveils (My loathings are simple: stupidity, oppression, crime, cruelty, soft music. - Nabokov)
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To: Altariel

Didn’t we go through something similar during the Exxon Valdes cleanup? Harm of the cleanup?


3 posted on 12/02/2012 6:48:17 AM PST by libertarian27 (Check my profile page for the FReeper Online Cookbook 2011)
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To: Altariel

Wash a sink of dishes with Dawn (the same degreasing used in BP leak) and let it sit for several hours. Drain the water and feel the bottom of the sink, it will be covered with grease because it breaks it down, then it sinks.

Now imagine the bottom of the Gulf.


4 posted on 12/02/2012 7:01:44 AM PST by autumnraine (America how long will you be so deaf and dumb to the tumbril wheels carrying you to the guillotine?)
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To: Altariel

This was already known at the time.

Obama ordered the dispersant used in large quantities, because it was made in a factory owned by his Chicago cronies.

Obama also seems to have done everything he could to slow the repairs down, although that also could have been the incompetant Coast Guard commander who was put in charge. Other countries offered to help, but Obama refused to let them in.


5 posted on 12/02/2012 7:05:44 AM PST by Cicero (Marcus Tullius)
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To: Altariel

The first thing I thought was why is this person writing this? What are his motives. Then I questioned the “science” behind it. Is this some more junk science like global warming?


6 posted on 12/02/2012 7:13:58 AM PST by mountainlion (Live well for those that did not make it back.)
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To: Altariel
Not surprised. There was plenty of anecdotal evidence that the dispersant was making a lot of people very sick.
7 posted on 12/02/2012 7:16:15 AM PST by uncommonsense (Conservatives believe what they see; Liberals see what they believe.)
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To: Altariel

how many million gallons of sea water is in the gulf? In the end, how many parts per Trillion is the dispersant vs sea water? I suspect that if you drank the water in the gulf, the salt would kill you long before you were affected by any chemicals.

To have a government enviromental agency report that they find toxins is like paying the wolf to guard the hen house.

Foolish, at best.


8 posted on 12/02/2012 8:03:57 AM PST by American in Israel (A wise man's heart directs him to the right, but the foolish mans heart directs him toward the left.)
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To: American in Israel

You misread the article:

” The results contrast with those released by the Environmental Protection Agency in August 2010. That study found that a mixture of oil and Corexit isn’t more toxic than oil alone to both a species of shrimp and species of fish. However, several studies have found the mixture is more toxic than oil to the embryos of several fish species. The EPA could not immediately be reached for comment.

“To date, EPA has done nothing but congratulate itself on how Corexit was used and avow they would do it the same way again,” MacDonald said.”


9 posted on 12/02/2012 8:20:22 AM PST by Altariel ("Curse your sudden but inevitable betrayal!")
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To: Altariel

Petroleum is a natural organic compound. Bacteria love the stuff. Natural bacteria would have taken care of it. But then you can’t call it a crisis and not let it go to waste.


10 posted on 12/02/2012 8:34:59 AM PST by E. Pluribus Unum (Labor unions are the Communist Party of the USA.)
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To: Altariel

Yet AFAIK scientists are presently unable to quantify any significant damage to the Gulf’s ecosystem as a result of the spill.

I’m not averse to the idea put forward here, but suspect the authors’ agenda is not to find better ways to clean up spills, but rather to ban all offshore drilling as too dangerous for the environment.


11 posted on 12/02/2012 8:46:16 AM PST by Sherman Logan
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To: autumnraine
"Now imagine the bottom of the Gulf."

The volume of oil released into the gulf by the BP oil spill was proportionally the same as a large can of beer poured into a pro football stadium filled with water. I would defy you to find any evidence of the beer.

12 posted on 12/02/2012 8:49:45 AM PST by norwaypinesavage (Galileo: In science, the authority of a thousand is not worth the humble reasoning of one individual)
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To: Altariel

I think instead of science and reason, we have a gaggle of fools leading us in circles down the drain.


13 posted on 12/02/2012 8:58:10 AM PST by American in Israel (A wise man's heart directs him to the right, but the foolish mans heart directs him toward the left.)
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To: Altariel

I recall reading an article in 2010 about this. It was known from European experience at the time about the toxicity of the dispersants, but they were used anyway.

Somewhere in the archives is an article on that very matter. It was posted here at Free Republic for those of you who enjoy doing research.


14 posted on 12/02/2012 11:07:19 AM PST by rockinqsranch (Dems, Libs, Socialists, call 'em what you will, they ALL have fairies livin' in their trees.)
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To: Altariel

So this research could be validated by going to the Gulf and determining whether there were any live animals in the Gulf, correct?


15 posted on 12/02/2012 11:47:39 AM PST by ModelBreaker
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To: Altariel
You mean that nobody at Nalco, or the EPA, at any time ever thought to see how this stuff reacted with oil and salt water? They, just like, kinda' found out after the fact?
16 posted on 12/02/2012 3:35:21 PM PST by ex91B10 (We've tried the Soap Box,the Ballot Box and the Jury Box; ONE BOX LEFT!)
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