Deepwater Horizon oil spill 17 of whom were treated for injuries. The Deepwater Horizon sank on the morning of 22 April 2010. The oil leak was discovered on the afternoon of 22 April 2010 when a large oil slick began to spread at the former rig site. The oil flowed for 87 days. BP originally estimated a flow rate of . The Flow Rate Technical Group (FRTG) estimated the initial flow rate was . The total estimated volume of leaked oil approximated with plus or minus 10% uncertainty, including oil that was collected, making it the world's largest accidental spill. BP challenged the higher
Health consequences of the Deepwater Horizon oil spill health surveys from individuals residing along the Gulf Coast whom experienced adverse health effects after exposure to the 2010 oil spill. The goal of the survey is to track the occurrence of adverse health effects in the area amongst people that were exposed to the oil spill or dispersants from subsequent clean-up efforts. In April 2011, a review article in the New England Journal of Medicine discussed the health consequences of the spill. According to the review, at high doses some crude-oil components cause respiratory, hepatic (liver), renal (urinary system), endocrine (hormonal system), neurologic, hematologic (vascular system), and other systemic