Carbonyl Emissions and Heating Temperatures across 75 Nominally Identical Electronic Nicotine Delivery System Products: Do Manufacturing Variations Drive Pulmonary Toxicant Exposure?

Studies of factors that impact electronic nicotine delivery systems (ENDSs) carbonyl compound (CC) emissions have been hampered by wide within-condition variability. In this study, we examined whether this variability may be related to heating coil temperature variations stemming from manufacturing...

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Bibliographic Details
Published in:Chemical research in toxicology 2023-03, Vol.36 (3), p.342-346
Main Authors: Talih, Soha, Salman, Rola, Karaoghlanian, Nareg, El-Hellani, Ahmad, Shihadeh, Alan
Format: Article
Language:English
Subjects:
Electronic Nicotine Delivery Systems
Hazardous Substances
Heating
Nebulizers and Vaporizers
Nicotine
Rapid Report
Temperature
Tobacco Products
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Summary:Studies of factors that impact electronic nicotine delivery systems (ENDSs) carbonyl compound (CC) emissions have been hampered by wide within-condition variability. In this study, we examined whether this variability may be related to heating coil temperature variations stemming from manufacturing differences. We determined the mean peak temperature rise (ΔT max) and CC emissions from 75 Subox ENDSs powered at 30 W. We found that ΔT max and CC emissions varied widely, with greater ΔT max resulting in exponentially higher CC emissions. Also, 12% of atomizers accounted for 85% of total formaldehyde emissions. These findings suggest that major reductions in toxicant exposure might be achieved through regulations focusing on limiting coil temperature.
ISSN:0893-228X
1520-5010
DOI:10.1021/acs.chemrestox.2c00391