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View Diary: Daily Kos LMRP Liveblog - Diary #18 - Who Are They Kidding? (299 comments)

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  •  In Gulf Spill, BP Using Dispersants Banned in U.K (5+ / 0-)

    The two types of dispersants BP is spraying in the Gulf of Mexico are banned for use [1] on oil spills in the U.K. As EPA-approved products [2], BP has been using them in greater quantities than dispersants have ever been used [3] in the history of U.S. oil spills.

    BP is using two products from a line of dispersants called Corexit [4], which EPA data [2] appear to show is more toxic and less effective [5] on South Louisiana crude than other available dispersants, according to Greenwire.

    We learned about the U.K. ban from a mention on The New York Times’ website. (The reference was cut from later versions of the article, so we can’t link to the Times, but we found the piece [6] elsewhere.) The Times flagged a letter [7] that Rep. Edward Markey, chairman of the House Subcommittee on Energy and Environment, sent to the EPA on Monday. The letter pointed out that both the Corexit products currently being used in the Gulf were removed from a list of approved treatments for oil spills in the U.K. more than a decade ago.

    http://www.propublica.org/...

    •  Stop the Use of Corexit -Even if the following is (3+ / 0-)
      Recommended by:
      hester, papicek, politik

      only a possible -even if improbable possibility.

      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.,,,

      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....

      http://www.eutimes.net/...

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