Health consequences of the Deepwater Horizon oil spill Health consequences of the Deepwater Horizon oil spill The Health consequences of the "Deepwater Horizon" oil spill are health effects related to the explosion of the "Deepwater Horizon" offshore drilling rig in the Gulf of Mexico on April 20, 2010. An oil discharge continued for 84 days, resulting in the largest oil spill in the history of the petroleum industry, estimated at approximately 206 million gallons (4.9 million barrels). The spill exposed thousands of area residents and cleanup workers to risks associated with oil fumes, particulate matter from controlled burns, volatile organic compounds (VOCs), polycylic aromatic hydrocarbons (PAHs), and heavy
Deepwater Horizon oil spill a 193-page report on its web site. The report places some of the blame for the accident on BP but also on Halliburton and Transocean. The report found that on 20 April 2010, managers misread pressure data and gave their approval for rig workers to replace drilling fluid in the well with seawater, which was not heavy enough to prevent gas that had been leaking into the well from firing up the pipe to the rig, causing the explosion. The conclusion was that BP was partly to blame, as was Transocean, which owned the rig. Responding to the report, Transocean