Evaluation of Flavorings-Related Lung Disease Risk at Six Microwave Popcorn Plants

After investigating fixed airways obstruction in butter flavoring-exposed workers at a microwave popcorn plant, we sought to further characterize lung disease risk from airborne butter-flavoring chemicals.We analyzed data from medical and environmental surveys at six microwave popcorn plants (including the index plant).Respiratory symptom and airways obstruction prevalences were higher in oil and flavorings mixers with longer work histories and...