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Jun 30, 2010 3:35 PM by Melissa Canone

EPA First Round Of Testing On Dispersant

WASHINGTON (AP) - EPA officials say their first round of testing
on chemicals used to break apart the oil in the Gulf of Mexico
shows all the available dispersants are generally equally toxic.
Paul Anastas, EPA's assistant administrator for research and
development, said Wednesday that the testing also showed the
chemicals are far less toxic than oil. He said none of the
chemicals had dangerous effects on the sea life tested.
The chemicals break oil into smaller particles that are easier
for microbes to consume.
Anastas says the chemicals break down in weeks or months, while
it takes oil years to biodegrade.
However, he cautioned that more testing was needed to study how
toxic the dispersants are when mixed with oil. This round of
testing only studied the chemicals not mixed with oil.

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