Environmental impact of the Deepwater Horizon oil spill died off in the areas that were affected by the underwater plumes that stretched out miles beyond the spill site. The foraminifera have returned in some areas but in other areas they have burrowed into the sediments, stirring them up all over again. Noting that it took several years for the herring population to crash following the Exxon Valdez oil spill, the researchers expressed concerns that it may also take years for long-terms effects to become apparent in the gulf. Environmental impact of the Deepwater Horizon oil spill The 2010 "Deepwater Horizon" oil spill in the Gulf of Mexico has
Volume and extent of the Deepwater Horizon oil spill approached the Delta National Wildlife Refuge and Breton National Wildlife Refuge. On 19 May 2010, both NOAA and other scientists monitoring the spill with the European Space Agency Envisat radar satellite stated that oil had reached the Loop Current, which flows clockwise around the Gulf of Mexico towards Florida and then joins the Gulf Stream along the U.S. east coast. On 29 June 2010, NOAA determined that the oil slick was no longer a threat to the loop current and stopped tracking offshore oil predictions that include the loop currents region. The omission is noted prominently on the ongoing nearshore