Particulate matter in aerosols produced by two last generation electronic cigarettes : a comparison in a real-world environment
Borgini, Alessandro (Fondazione IRCCS Istituto Nazionale dei Tumori)
Veronese, Chiara (Fondazione IRCCS Istituto Nazionale dei Tumori)
De Marco, Cinzia (Fondazione IRCCS Istituto Nazionale dei Tumori)
Boffi, Roberto (Fondazione IRCCS Istituto Nazionale dei Tumori)
Tittarelli, Andrea (Fondazione IRCCS Istituto Nazionale dei Tumori)
Bertoldi, M. (Fondazione IRCCS Istituto Nazionale dei Tumori)
Fernández, Esteve (Hospital Universitari de Bellvitge)
Tigova, Olena (Hospital Universitari de Bellvitge)
Gallus, Silvano (IRCCS Istituto Giannina Gaslini (Gènova, Itàlia))
Lugo, Alessandra (IRCCS Istituto Giannina Gaslini (Gènova, Itàlia))
Gorini, Giuseppe (Oncologic network. prevention and research institute (ISPRO))
Carreras, Giulia (Oncologic network. prevention and research institute (ISPRO))
López Medina, María José (Institut de Recerca Sant Pau)
Continente, Xavier (Institut de Recerca Sant Pau)
Semple, Sean (University of Stirling)
Dobson, Ruaraidh (University of Stirling)
Clancy, Luke (Tobacco Free Research Institute Ireland (TFRI))
Keogan, Sheila (Tobacco Free Research Institute Ireland (TFRI))
Tzortzi, Anna S. (Hellenic Cancer Society.. George D. Behrakis Research Lab (HCS))
Vardavas, C. (Hellenic Cancer Society.. George D. Behrakis Research Lab (HCS))
Nicols, L.P. (Universidad Politécnica de Cartagena)
Starchenko, P. (European Network on Smoking and Tobacco Prevention (ENSP))
Soriano, Joan B. (Hospital Universitario de la Princesa (Madrid))
Ruprecht, A.A. (Fondazione IRCCS Istituto Nazionale dei Tumori)
Universitat Autònoma de Barcelona

Fecha:	2024
Resumen:	The design of e-cigarettes (e-cigs) is constantly evolving and the latest models can aerosolize using high-power sub-ohm resistance and hence may produce specific particle concentrations. The aim of this study was to evaluate the aerosol characteristics generated by two different types of electronic cigarette in real-world conditions, such as a sitting room or a small office, in number of particles (particles/cm). We compared the real time and time-integrated measurements of the aerosol generated by the e-cigarette types Just Fog and JUUL. Real time (10 s average) number of particles (particles/cm) in 8 different aerodynamic sizes was measured using an optical particle counter (OPC) model Profiler 212-2. Tests were conducted with and without a Heating, Ventilating Air Conditioning System (HVACS) in operation, in order to evaluate the efficiency of air filtration. During the vaping sessions the OPC recorded quite significant increases in number of particles/cm. The JUUL e-cig produced significantly lower emissions than Just Fog with and without the HVACS in operation. The study demonstrates the rapid volatility or change from liquid or semi-liquid to gaseous status of the e-cig aerosols, with half-life in the order of a few seconds (min. 4. 6, max 23. 9), even without the HVACS in operation. The e-cig aerosol generated by the JUUL proved significantly lower than that generated by the Just Fog, but this reduction may not be sufficient to eliminate or consistently reduce the health risk for vulnerable non e-cig users exposed to it.
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Electronic cigarette ; Particle number ; Particulate matter ; Second-hand aerosol exposure
Publicado en:	Pulmonology, Vol. 30 Núm. 2 (january 2024) , p. 137-144, ISSN 2531-0437

DOI: 10.1016/j.pulmoe.2021.03.005
PMID: 33879426

8 p, 747.3 KB

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