Diacetyl and Other Ketones in e-Cigarette Aerosols: Some Important Sources and Contributing Factors

• Published in: Frontiers in chemistry Vol. 9; p. 742538
• Main Authors: McAdam, Kevin, Waters, Gareth, Moldoveanu, Serban, Margham, Jennifer, Cunningham, Anthony, Vas, Carl, Porter, Andrew, Digard, Helena
• Format: Journal Article
• Language: English
• Published: Frontiers Media S.A 23.09.2021
• Subjects: acetoin; acetyl propionyl; Chemistry; diacetyl; e-cigarette; flavors; pyrolysis - gas chromatography

Background: Concerns over the presence of the diketones 2,4 butanedione (DA) and 2,3 pentanedione (AP) in e-cigarettes arise from their potential to cause respiratory diseases. Their presence in e-liquids is a primary source, but they may potentially be generated by glycerol (VG) and propylene glyco...