Chemical In Microwave Popcorn Fumes Linked To Rare Lung Disease

NEW YORK CITY - MARCH 12: A freshly popped bag of microwave popcorn sits on a table March 12, 2004 in New York City. The Environmental Protection Agency is studying the chemicals released when a bag of microwave popcorn is popped or opened. Exposure to vapors from butter flavoring used in microwave popcorn has been linked to a rare lung disease contracted by factory workers in Missouri, Illinois, Iowa and Nebraska. (Photo by Justin Sullivan/Getty Images)