How much water in the northern Gulf?

Some 10,000 bbl/day of oil, over three weeks- that's 210,000 barrels. At 42 US gallons/bbl, that's 8,800,000 US gallons, dispersed over a large area. And the well continues to blow.

How much Gulf water affected? Miles of shoreline, counting inlets, islands, beaches, marsh lands?

Speed of manufacture of these machines? Cost of materials? Positioning and operation?

Collecting systems for separated oil?

Effect of mud, colloids particulates in the water on the gadget's efficiency?

Or would it be just as effective to wring one's hands?