Gulf War oil spill place it several times the size (by volume) of the Exxon Valdez oil spill. The "New York Times" reported that a 1993 study sponsored by UNESCO, Bahrain, Iran, Iraq, Kuwait, Oman, Qatar, Saudi Arabia, the United Arab Emirates and the United States found the spill did "little long-term damage": About half the oil evaporated, were recovered and to washed ashore, mainly in Saudi Arabia. More recent scientific studies have tended to disagree with this assessment. Marshlands and mud tidal flats continued to contain large quantities of oil, over nine years later, and full recovery is likely to take decades. Dr.
Greenpoint oil spill study, completed in May 2007, indicated that no vapor was coming from the spill into homes. The Environmental Protection Agency's (EPA) "Newtown Creek/Greenpoint Oil Spill Study Brooklyn, New York" states that vapor concentrations in "some commercial establishments" were found "above the Upper Explosive Limit". The study also said, "A review of the data collected by the NYSDEC shows that, in general, chemicals were detected at all locations in each home, but not in a pattern that would typically represent a vapor intrusion phenomenon." A New York State Department of Environmental Conservation report tested residential blocks above the spill area concluded