[DallasDeb]

Since the EPA is responsible for ecological health, then why haven’t these dispersants been tested already?

[Sacajaweau]

I believe they were and this is just to show us that they’re doing something....AND PROBABLY BILLING BP some extraordinary amount.

[Sacajaweau]

Did a tiny bit of research. Testing is submitted to EPA. And for ex. Corerit 9500 is on the USE Contingency Plan Schedule.

Guess it works like the FDA.

Other countries incl. England and Canada have approved the stuff

[Charles Martel]

Since the EPA is responsible for ecological health, then why haven’t these dispersants been tested already?

I think they have been, but at less concentrated levels (as would apply in surface use, rather than sub-sea injection). At least, that's what I recall reading over at The Oil Drum.

[thackney]

It was tested and approved years ago.

The concern is using it underwater and in such large quantities.