I think that’s a bit understated at this point. I can understand a desire to downplay it. And they could be right. However, among the findings this far:
“Tests showed that about 30 percent of the oxygen in the plume has been depleted, which could threaten marine life — mussels, clams, crabs, eels, jellyfish, shrimp and even sharks.”
It’s also not known precisely what the benefit or damage of the dispersal agents will be.
More testing of the samples is still to be done, and very recently one of the plumes seemed to be heading away from the coast.
“No definitive conclusions” is accurate, but I don’t find it that comforting a statement.
Sorry, but the guys on the "Pelican" (who are the ones doing the tests), say "not so". They specifically say that the reduction in oxygen levels is insufficient to cause problems.