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Examining heated tobacco product emissions


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A new paper examining whether heated tobacco products give off smoke has been published in the academic journal American Chemical Society Omega

Professor Colin Snape and Dr. Clement Uguna, from the Faculty of Engineering at the University of Nottingham, conducted a literature review of studies examining emissions generated by heated tobacco products (HTPs).

Often seen as an alternative to cigarettes, HTPs are electronic devices that heat a rod or stick of molded tobacco leaf or reconstituted tobacco made from ground tobacco powder prepared with ingredients such as glycerol, water, cellulose fiber and guar gum to produce vapors. Hybrid HTP devices generate nicotine aerosols by heating an e-liquid and passing the vapor through a tobacco capsule.

The academics found that, based on the materials reviewed, the chemical evidence to date indicates that these devices generate harmful and potentially harmful components (HPHC) and other compounds associated with human health concerns.

The study suggests that the emissions from heated tobacco products contain the same HPHCs released in cigarette smoke and, in terms of their release temperature, fit the definition of smoke, with compounds such as levoglucosan being markers of biomass combustion and black carbon being associated with biomass. , wood and tobacco smoke.

Professor Snape and Dr. Uguna, experts in pyrolysis and hydropyrolysis (the heating of materials to convert them into liquid or gas), received funding for this study from STOP, a global tobacco industry watchdog.

“While the literature points to heated tobacco products giving off smoke and other chemicals — less than cigarettes — there is still a lot of work to be done to better understand this phenomenon,” Snape said. “Repeated use analysis should be investigated to provide more reliable assessments of the compounds released from the devices in relation to human use, as recommended by their respective manufacturers, before cleaning the device,” he added.

Heated Tobacco: The Risks and Benefits

More information:
Clement N. Uguna et al, Should IQOS Emissions Be Considered Smoke and Harmful to Health? An overview of the chemical evidence, ACS Omega (2022). DOI: 10.1021/acsomega.2c01527

Provided by the University of Nottingham

Quote: Research on the emissions of heated tobacco products (2022, June 28) retrieved June 29, 2022 from https://phys.org/news/2022-06-tobacco-product-emissions.html

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