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EPA Grossly Misrepresents The Toxicity Of Corexit Used In Gulf Of Mexico
Posted By aaron On May 12, 2012 @ 11:43 am In Science & Technology | Comments Disabled
May 12, 2012
Quite incredibly, the EPA issued a positive report on May 1, 2012 regarding the safety and toxicity of various dispersants use in the BP Gulf Oil Spill. Included in this assessment was the use of Corexit.
This report “indicated that all eight dispersants had roughly the same toxicity, and all fell into the “practically non-toxic” or “slightly toxic” category. Scientists found that none of the eight dispersants displayed endocrine-disrupting activity of “biological significance.” The same report went on to say that “dispersant-oil mixtures were generally no more toxic to the aquatic test species than oil alone.”
The first question that jumps out for those who have researched this subject with any degree of thoroughness is how this recent report fails to reconcile with previous studies performed by the EPA. Here is some test data retrieved from the EPA website that was posted previous to the BP Gulf Oil Spill.
“The dispersant (Corexit 9500) and dispersed oil have demonstrated the following levels of toxicity per the EPA website link that follows:
(1) 10.72 parts per million (ppm) of oil alone will kill 50% of the fish test species in a normal aquatic environment within 96 hours.
(2) 25.20 parts per million of dispersant (Corexit 9500) alone will kill 50% of the fish test species in a normal aquatic environment within 96 hours.
(3) 2.61 parts per million of dispersed oil (Corexit-laden) alone will kill 50% of the fish test species in a normal aquatic environment within 96 hours.”
This data diverges from the recent report to such a significant degree that the results which were just posted at the EPA.GOV website under the title of “The BP Oil Spill: Responsive Science Supports Emergency Response” must be seriously scrutinized.
What is the buying public to make of such conflicting data? Those who have medical conditions which require complete avoidance of toxic seafood need to know with certainty what they are eating.
Likewise, the fishermen in the Gulf need to know the true condition of their catch. Swimmers and beachgoers need to know the state of the water, as well as the beaches.
Boaters ought to be informed of the relevant risk factors when out in the areas of recently sprayed waters, whether surface or deep sea.
This article first appeared at NaturalSociety.
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