has the EPA banned any of the dispersants used to clean up oil spills?



  1. 0 Votes

    The primary chemical dispersants used were Corexit EC9500A and Corexit EC9527A.  The OSHA-required Material Safety Data Sheets (MSDSs) for both versions of Corexit used in the gulf show “Component substances have a potentail to bioconcentrate”, defined by the EPA as “accumulation of a chemical in tissues of a fish or other organism to levels greater than in surrounding medium”.  The data sheets further state:  “No toxicity studies have been conducted on this product”.  Although they are not the least toxic, nor the most effective among the EPA approved dispersants – and have been banned from use on oil spills in the UK – BP says it chose Corexit because it was available the week of the rig explosion. 

  2. 0 Votes

    In May 2010, the EPA banned BP from using two forms of Corexit after discovering that it is highly toxic, damaging to sea life, and ineffective in battling the oil spill in the Gulf of Mexico. BP was given 24 hours to find a new, less toxic dispersant and 72 hours to deploy it. These chemicals had already been banned in the UK.

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