Exxon Valdez oil spill a number of recommendations, such as changes to the work patterns of Exxon crew in order to address the causes of the accident. In response to the spill, the United States Congress passed the Oil Pollution Act of 1990 (OPA). The legislation included a clause that prohibits any vessel that, after March 22, 1989, has caused an oil spill of more than in any marine area, from operating in Prince William Sound. In April 1998, the company argued in a legal action against the Federal government that the ship should be allowed back into Alaskan waters. Exxon claimed OPA was
Rayong oil spill study found that Corexit increases the toxicity of oil by 52 times. It can remain in the ecological food chain for many years and cause widespread and long-lasting health impacts." Official reports said of oil were spilled, but critics of the oil company and the government say that the spill was much larger and warned of health risks posed both by the spill and by the chemicals being used to disperse the oil. A higher estimate of the oil spill has been performed by Somporn Chuai-aree of Prince Songkhla University: "as low as or as high as ". This estimate