Exxon Valdez oil spill cleanup, 2-butoxyethanol, was identified as "one of the agents that caused liver, kidney, lung, nervous system, and blood disorders among cleanup crews in Alaska following the 1989 "Exxon Valdez" spill. Mechanical cleanup was started shortly afterwards using booms and skimmers, but the skimmers were not readily available during the first 24 hours following the spill, and thick oil and kelp tended to clog the equipment. Despite civilian insistence for a complete clean, only 10% of total oil was actually completely cleaned. Exxon was widely criticized for its slow response to cleaning up the disaster and John Devens, the mayor of
Exxon Valdez oil spill responsible" for the spill, because they had granted mariners' licenses to the crew of the Valdez, and because they had given the "Valdez" permission to leave regular shipping lanes to avoid ice. They also reiterated the claim that the Coast Guard had delayed cleanup by refusing to give permission to immediately use chemical dispersants on the spill. The Oil Spill Recovery Institute was formed after United States Congress approved it to seek a solution. Collaborating with InnoCentive they found a partial solution for the flow of oil. A report by the US National Response Team summarized the event and made