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What substance is primarily associated with 'popcorn worker’s lung disease'?

Popcorn kernels

Diacetyl

'Popcorn worker’s lung disease', also known as bronchiolitis obliterans, is an inflammatory disease that affects the smallest airways in the lungs. It is primarily associated with exposure to diacetyl, a chemical flavoring used in microwave popcorn production. The other options (popcorn kernels, sodium chloride, and butter) are incorrect because they do not have a significant connection to the disease. While popcorn kernels are the source of the snack, sodium chloride is just table salt and butter is a commonly used topping on popcorn. Therefore, diacetyl is the correct substance to be primarily associated with 'popcorn worker’s lung disease'.

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Sodium chloride

Butter

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