Mississippi River pours as much dispersant into the Gulf of Mexico as BP

I ran across this fascinating story of the chemicals used in dispersants flowing into the gulf of Mexico before the spill.

"Mississippi River pours as much dispersant into the Gulf of Mexico as BP". http://www.nola.com/news/gulf-oil-spill/index.ssf/2010/08/mississippi_river_pours_as_muc.html

I remember in the 1970's there was a big push to get phosphates out of detergents. Like an area of water with a lot of natural oil seeps nature probably adapts organisms to handle these dispersant type chemicals. This may be why the oil "disappeared" so soon after the BP well was capped. Also, interesting is how no one considered this factor until now.