BP refuses EPA order to switch to less-toxic oil dispersant
Oil washes ashore on 50 miles of Louisiana shoreline as tensions mount over how to treat the spill in the Gulf of Mexico.
By Margot Roosevelt and Carolyn Cole
Los AngelesTimes.com
May 23, 2010
Reporting from Los Angeles and Elmer’sBP has rebuffed demands from government officials and environmentalists to use a less-toxic dispersant to break up the oil from its massive offshore spill, saying that the chemical product it is now using continues to be “the best option for subsea application.”
On Thursday, the U.S. Environmental Protection Agency gave the London-based company 72 hours to replace the dispersant Corexit 9500 or to describe in detail why other dispersants fail to meet environmental standards.
The agency on Saturday released a 12-page document from BP, representing only a portion of the company’s full response. Along with several dispersant manufacturers, BP claimed that releasing its full evaluation of alternatives would violate its legal right to keep confidential business information private.
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But in a strongly worded retort, the EPA said that it was “evaluating all legal options” to force BP to release the remaining information “so Americans can get a full picture of the potential environmental impact of these alternative dispersants.”
So far, 715,000 gallons of dispersant has been applied since the April 20 explosion of the Deepwater Horizon rig, mostly on the spill’s surface. The chemical has also been released near the leaking pipe on the seafloor.
Government officials have justified both uses, saying that if oil reaches the shore, it would do more environmental harm than if it were dispersed off the coast.
Dispersants break oil into droplets that decompose more quickly. But scientists worry that extensive use of the chemicals in the BP spill is increasing marine life’s exposure to the toxins in oil.
“While the dispersant BP has been using is on the agency’s approved list, BP is using this dispersant in unprecedented volumes and, last week, began using it underwater at the source of the leak — a procedure that has never been tried before,” the EPA noted last week, acknowledging that “much is unknown about the underwater use of dispersants.”
In the company’s May 20 letter to the EPA and the Coast Guard, responding to the EPA’s directive, BP operations chief Doug Suttles wrote that only five products on the EPA’s approved list meet the agency’s toxicity criteria. And only one, besides Corexit, is available in sufficient quantities in the next 10 to 14 days, it said.
But that alternative product, Sea Brat #4, according to BP, contains a chemical that could degrade into an endocrine disruptor, a substance that creates hormonal changes in living creatures, and could persist in the environment for years.
As the tensions over how to treat the spill escalated, reddish-brown washes of oil, 2 inches thick in places, soiled Louisiana beaches. Hundreds of workers scooped up gooey piles of sand and stuffed them into plastic bags.
“It is worse today than on the past two days,” said Darren Smith, 43, sweating from his work raking sand at a wildlife refuge on Elmer’s Island. “There’s definitely more oil, and it’s just going to keep coming.”
No booms protected the Elmer’s Island beach because the National Guard had focused on building dams to divert oil from the wetlands behind the beach.
A few miles away at Port Fourchon, plastic barriers that looked like pompoms were strung together along the beach but did a poor job of keeping out the oil. More than 50 miles of Louisiana shoreline has been contaminated so far.
Bp’s dispersant: Corexit, is banned in the UK. There must be a reason for that.
Here’s some interesting info on Bp’s Corexit Dispersant for your readers:
A dire report prepared for President Medvedev by Russia’s Ministry of Natural Resources is warning today that the British Petroleum (BP) oil and gas leak in the Gulf of Mexico is about to become the worst environmental catastrophe in all of human history threatening the entire eastern half of the North American continent with “total destruction”.
Russian scientists are basing their apocalyptic destruction assessment due to BP’s use of millions of gallons of the chemical dispersal agent known as Corexit 9500 which is being pumped directly into the leak of this wellhead over a mile under the Gulf of Mexico waters and designed, this report says, to keep hidden from the American public the full, and tragic, extent of this leak that is now estimated to be over 2.9 million gallons a day.
The dispersal agent Corexit 9500 is a solvent originally developed by Exxon and now manufactured by the Nalco Holding Company of Naperville, Illinois that is four times more toxic than oil (oil is toxic at 11 ppm (parts per million), Corexit 9500 at only 2.61ppm). In a report written by Anita George-Ares and James R. Clark for Exxon Biomedical Sciences, Inc. titled “Acute Aquatic Toxicity of Three Corexit Products: An Overview” Corexit 9500 was found to be one of the most toxic dispersal agents ever developed. Even worse, according to this report, with higher water temperatures, like those now occurring in the Gulf of Mexico, its toxicity grows.
The United States Environmental Protection Agency (EPA) in discovering BP’s use of this dangerous dispersal agent ordered BP to stop using it, but BP refused stating that their only alternative to Corexit 9500 was an even more dangerous dispersal agent known as Sea Brat 4.
The main differences between Corexit 9500 and Sea Brat 4 lie in how long these dangerous chemicals take to degrade into their constituent organic compounds, which for Corexit 9500 is 28 days. Sea Brat 4, on the other hand, degrades into an organic chemical called Nonylphenol that is toxic to aquatic life and can persist in the environment for years.
A greater danger involving Corexit 9500, and as outlined by Russian scientists in this report, is that with its 2.61ppm toxicity level, and when combined with the heating Gulf of Mexico waters, its molecules will be able to “phase transition” from their present liquid to a gaseous state allowing them to be absorbed into clouds and allowing their release as “toxic rain” upon all of Eastern North America.
Even worse, should a Katrina like tropical hurricane form in the Gulf of Mexico while tens of millions of gallons of Corexit 9500 are sitting on, or near, its surface the resulting “toxic rain” falling upon the North American continent could “theoretically” destroy all microbial life to any depth it reaches resulting in an “unimaginable environmental catastrophe” destroying all life forms from the “bottom of the evolutionary chart to the top”.
Note: For molecules of a liquid to evaporate, they must be located near the surface, be moving in the proper direction, and have sufficient kinetic energy to overcome liquid-phase intermolecular forces. Only a small proportion of the molecules meet these criteria, so the rate of evaporation is limited. Since the kinetic energy of a molecule is proportional to its temperature, evaporation proceeds more quickly at higher temperatures.
As over 50 miles of the US State of Louisiana’s coastline has already been destroyed by this spill, American scientists are warning that the damage may be impossible to repair, and as we can read as reported by the Associated Press News Service:
“The gooey oil washing into the maze of marshes along the Gulf Coast could prove impossible to remove, leaving a toxic stew lethal to fish and wildlife, government officials and independent scientists said. Officials are considering some drastic and risky solutions: They could set the wetlands on fire or flood areas in hopes of floating out the oil. They warn an aggressive cleanup could ruin the marshes and do more harm than good.”
And to understand the full import of this catastrophe it must be remembered that this disaster is occurring in what is described as the “biologically richest waters in America” with the greatest amount of oil and toxic Corexit 9500 set to come ashore in the coming days and weeks to destroy it completely for decades to come.
Reports are also coming from the United States that their government is secretly preparing to evacuate tens-of-millions of their citizens from their Gulf of Mexico States should the most dire of these scientific warnings start to come true.
To the greatest lesson to be learned by these Americans is that their government-oil industry cabal has been just as destructive to them as their government-banking one, both of which have done more to destroy the United States these past couple of years than any foreign enemy could dare dream was possible.
But to their greatest enemy the Americans need look no further than their nearest mirror as they are the ones who allowed these monsters to rule over them in the first place.
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