Smoke rises from surface oil being burned by cleanup crews in the Gulf of Mexico after the Deepwater Horizon oil spill in April 2010. Washington — Decreases in lung function observed among cleanup workers shortly after the 2010 Deepwater Horizon oil rig disaster were no longer apparent within the next few years, results of a new study from the National Institute of Environmental Health Sciences indicate – suggesting that some adverse health effects linked to the spill may resolve over time. BP bought Kevin Costner's oil spill clean-up machines – despite field test failure

Beachgoers look on as a crew cleaning oil from the Deepwater Horizon spill walk by on a beach in Gulf Shores, Alabama June 25, 2010.
plos PLoS Currents: Disasters 2157-3999 Public Library of Science San Francisco, USA 10.1371/4fa83b7576b6e Field report Review of the OSHA-NIOSH Response to the Deepwater Horizon Oil Spill: Protecting the Health and Safety of Cleanup Workers Michaels David. Deepwater Horizon oil spill This article is more than 8 years old. : The petroleum that had leaked from the well before it was sealed formed a slick extending over thousands of square kilometres of the Gulf of Mexico. David Michaels, PhD, MPH, is Assistant Secretary of Labor for the Occupational Safety and Health Administration. Photograph by Joel Sartore, Nat Geo Image Collection. BP's Deepwater Horizon Oil Spill - BP's Deepwater Horizon Oil Spill - Cleanup Efforts.