Quote:
Nearly 80pc of Gulf spill oil still in water: experts
Posted Wed Aug 18, 2010 12:00pm AEST
Nearly 80 per cent of the oil spilled from a BP well in the Gulf of Mexico is still in the gulf, US scientists have estimated, challenging a more optimistic assessment by the US government earlier in the month.
In its August 4 report, the National Oceanographic and Atmospheric Administration found that half the 4.9 million barrels of oil spilled by the April 20 blowout had been evaporated, burned, skimmed or dispersed.
A team of five scientists from the University of Georgia did their own analysis of the government data and came to a different conclusion.
"We just re-analysed this report... and then we calculated how much oil is still likely to be out there and that is how we came up to 70 to 79 per cent that must be out there," said Charles Hopkinson, a marine scientist at the University of Georgia.
"One major misconception is that oil that has dissolved into water is gone and therefore, harmless.
"The oil is still out there and it will likely take years to completely degrade. We are still far from a complete understanding of what its impacts are."
- AFP
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I got it from
here, but it's an AFP story so it is probably in many sources.
Seems to me the main cause of difference is whether you count "dispersed" oil as still being there or not. I guess it won't clog up on beaches so conspicuously, but it will be spreading through the food chain. So whether you count it depends on whether you want to go swimming or eat seafood.