"A new study about the way oil from the BP Deepwater Horizon accident evaporated into the air confirms that cleanup workers were exposed to high levels of airborne pollution, and that the fumes also may have made their way onshore in Louisiana.

The study does not attempt to assess the resulting health and environmental effects.

The study's authors also found that the way fumes from the oil combined with particles already in the air could provide a major clue to the way harmful air pollution forms from vehicle and other exhausts in urban areas."

Mark Schleifstein reports for the New Orleans Times-Picayune March 10, 2011. [2]