IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v18y2021i21p11606-d672404.html
   My bibliography  Save this article

Passive Vaping from Sub-Ohm Electronic Cigarette Devices

Author

Listed:
  • Maurizio Manigrasso

    (Department of Technological Innovations, National Institute for Insurance against Accidents at Work (INAIL), 00187 Rome, Italy)

  • Carmela Protano

    (Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy)

  • Matteo Vitali

    (Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy)

  • Pasquale Avino

    (Department of Agricultural, Environmental and Food Sciences (DiAAA), University of Molise, 86100 Campobasso, Italy)

Abstract

To investigate passive vaping due to sub-ohm electronic cigarettes (e-cigs), aerosol number size distribution measurements (6 nm–10 µm) were performed during volunteer-vaping sessions. E-liquids, with vegetable glycerin (VG) and propylene glycol (PG), with a VG/PG ratio of 50/50 (with nicotine) and 80/20 (without nicotine), were vaped with a double-coil, single aerosol exit hole at 25–80 W electric power, corresponding to 130–365 kW m −2 heat fluxes and with an octa-coil, four aerosol exit holes atomizers, at 50–150 W electric power, corresponding to 133–398 kW m −2 heat fluxes. At the lowest heat flux, lower particle number concentrations (N Tot ) were observed for the nicotine-liquid than for the nicotine-free liquid, also due to its higher content of PG, more volatile than VG. For the octa-coil atomizer, at 265 and 398 kW m −2 , N Tot decreased below the first-generation e-cig, whereas volume concentrations greatly increased, due to the formation of super micron droplets. Higher volume concentrations were observed for the 80/20 VG/PG liquid, because of VG vaporization and of its decomposition products, greater than for PG. For the double coil atomizer, increasing the electric power from 40 W (208 kW m −2 ) to 80 W (365 kW m −2 ) possibly led to a critical heat flow condition, causing a reduction of the number concentrations for the VG/PG 50/50 liquid, an increase for the 80/20 VG/PG liquid and a decrease of the volume concentrations for both of them. Coherently, the main mode was at about 0.1 µm on both metrics for both liquids. For the other tests, two main modes (1 and 2 µm) were observed in the volume size distributions, the latter becoming wider at 100 and 150 W (265 and 398 kW m −2 ), suggesting the increased emission of light condensable decomposition products. The lower aerosol emissions observed at 150 W than at 100 W suggest the formation of gas-phase decomposition products. The observation of low-count high-volume aerosols addresses the relevance of the volume metric upon measuring the second-hand concentration of the aerosols released by sub-ohm e-cigarettes.

Suggested Citation

  • Maurizio Manigrasso & Carmela Protano & Matteo Vitali & Pasquale Avino, 2021. "Passive Vaping from Sub-Ohm Electronic Cigarette Devices," IJERPH, MDPI, vol. 18(21), pages 1-14, November.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:21:p:11606-:d:672404
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/18/21/11606/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/18/21/11606/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Carmela Protano & Pasquale Avino & Maurizio Manigrasso & Valerio Vivaldi & Franco Perna & Federica Valeriani & Matteo Vitali, 2018. "Environmental Electronic Vape Exposure from Four Different Generations of Electronic Cigarettes: Airborne Particulate Matter Levels," IJERPH, MDPI, vol. 15(10), pages 1-10, October.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Mariangela Peruzzi & Elena Cavarretta & Giacomo Frati & Roberto Carnevale & Fabio Miraldi & Giuseppe Biondi-Zoccai & Sebastiano Sciarretta & Francesco Versaci & Vittoria Cammalleri & Pasquale Avino & , 2020. "Comparative Indoor Pollution from Glo, Iqos, and Juul, Using Traditional Combustion Cigarettes as Benchmark: Evidence from the Randomized SUR-VAPES AIR Trial," IJERPH, MDPI, vol. 17(17), pages 1-13, August.
    2. Vittoria Cammalleri & Daniela Marotta & Carmela Protano & Matteo Vitali & Paolo Villari & Maria Sofia Cattaruzza & on behalf of the Smoke-free Department Working Group, 2020. "How Do Combustion and Non-Combustion Products Used Outdoors Affect Outdoor and Indoor Particulate Matter Levels? A Field Evaluation Near the Entrance of an Italian University Library," IJERPH, MDPI, vol. 17(14), pages 1-15, July.
    3. Melinda Pénzes & Márta Bakacs & Zoltán Brys & József Vitrai & Gergely Tóth & Zombor Berezvai & Róbert Urbán, 2021. "Vaping-Related Adverse Events and Perceived Health Improvements: A Cross-Sectional Survey among Daily E-Cigarette Users," IJERPH, MDPI, vol. 18(16), pages 1-15, August.
    4. Rachel Boykan & Maciej L. Goniewicz & Catherine R. Messina, 2019. "Evidence of Nicotine Dependence in Adolescents Who Use Juul and Similar Pod Devices," IJERPH, MDPI, vol. 16(12), pages 1-6, June.
    5. Carmela Protano & Maurizio Manigrasso & Vittoria Cammalleri & Giuseppe Biondi Zoccai & Giacomo Frati & Pasquale Avino & Matteo Vitali, 2020. "Impact of Electronic Alternatives to Tobacco Cigarettes on Indoor Air Particular Matter Levels," IJERPH, MDPI, vol. 17(8), pages 1-10, April.
    6. Monique Williams & Prue Talbot, 2019. "Design Features in Multiple Generations of Electronic Cigarette Atomizers," IJERPH, MDPI, vol. 16(16), pages 1-15, August.
    7. Evan Floyd & Toluwanimi Oni & Changjie Cai & Bilal Rehman & Jooyeon Hwang & Tyler Watson, 2022. "Validation of a High Flow Rate Puff Topography System Designed for Measurement of Sub-Ohm, Third Generation Electronic Nicotine Delivery Systems," IJERPH, MDPI, vol. 19(13), pages 1-12, June.
    8. Christopher Johnes & Richard A. Sharpe & Tamaryn Menneer & Timothy Taylor & Penelope Nestel, 2023. "Using Sensor Data to Identify Factors Affecting Internal Air Quality within 279 Lower Income Households in Cornwall, South West of England," IJERPH, MDPI, vol. 20(2), pages 1-16, January.
    9. Si Yun Moon & Tae Won Kim & Yoon-Ji Kim & Youngki Kim & Se Yeong Kim & Dongmug Kang, 2019. "Public Facility Utility and Third-Hand Smoking Exposure without First and Second-Hand Smoking According to Urinary Cotinine Level," IJERPH, MDPI, vol. 16(5), pages 1-14, March.
    10. Evan Floyd & Sara Greenlee & Toluwanimi Oni & Balaji Sadhasivam & Lurdes Queimado, 2021. "The Effect of Flow Rate on a Third-Generation Sub-Ohm Tank Electronic Nicotine Delivery System—Comparison of CORESTA Flow Rates to More Realistic Flow Rates," IJERPH, MDPI, vol. 18(14), pages 1-13, July.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:18:y:2021:i:21:p:11606-:d:672404. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.