Flavoring Chemicals in E-Cigarettes: Diacetyl 23-Pentanedione and Acetoin in a Sample of 51 Products Including Fruit- Candy- and Cocktail-Flavored E-Cigarettes

摘要

Background: There are > 7,000 e-cigarette flavors currently marketed. Flavoring chemicals gained notoriety in the early 2000s when inhalation exposure of the flavoring chemical diacetyl was found to be associated with a disease that became known as “popcorn lung.” There has been limited research on flavoring chemicals in e-cigarettes.