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Open AccessArticle

Impact of Electronic Alternatives to Tobacco Cigarettes on Indoor Air Particular Matter Levels

1
Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy
2
Department of Technological Innovations, National Institute for Insurance against Accidents at Work (INAIL), via IV Novembre 144, I-00187 Rome, Italy
3
Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica 74, 04100 Latina, Italy
4
Mediterranea Cardiocentro, 80122 Naples, Italy
5
IRCCS NEUROMED, 86077 Pozzilli, Italy
6
Department of Agricultural, Environmental and Food Sciences (DiAAA), University of Molise, via De Sanctis, I-86100 Campobasso, Italy
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(8), 2947; https://doi.org/10.3390/ijerph17082947
Received: 17 March 2020 / Revised: 20 April 2020 / Accepted: 22 April 2020 / Published: 24 April 2020
An aerosol study was carried out in a test room measuring particulate matter (PM) with an aerodynamic diameter smaller than 10, 4, 2.5 and 1 µm (PM10, PM4, PM2.5, PM1) before and during the use of electronic alternatives to tobacco cigarettes (EATC) IQOS®, GLO®, JUUL®, with different kinds of sticks/pods, as well as during the smoking of a conventional tobacco cigarette. The aerosol was mainly in the PM1 size range (>95%). All studied EATCs caused lower indoor PM1 concentrations than conventional tobacco cigarettes. Nevertheless, they determined a worsening of indoor-PM1 concentration that ranged from very mild for JUUL®—depending on the pod used—to considerably severe for IQOS® and GLO®. Median values ranged from 11.00 (Iqos3 and Juul2) to 337.5 µg m−3 (Iqos4). The high variability of particle loadings was attributed both to the type of stick/pod used and to the different way of smoking of volunteers who smoked/vaped during the experiments. Moreover, during vaping IQOS® and GLO® indoor PM1 concentrations reach levels by far higher than outdoor concentrations that range from 14 to 21 µg m−3, especially during the exhalation of the smoke. From these results emerge an urgent need of a legislative regulation limiting the use of such devices in public places. View Full-Text
Keywords: indoor air; particulate matter; electronic cigarettes; heat-not-burn products; IQOS®; GLO®; JUUL®; passive smoking indoor air; particulate matter; electronic cigarettes; heat-not-burn products; IQOS®; GLO®; JUUL®; passive smoking
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MDPI and ACS Style

Protano, C.; Manigrasso, M.; Cammalleri, V.; Biondi Zoccai, G.; Frati, G.; Avino, P.; Vitali, M. Impact of Electronic Alternatives to Tobacco Cigarettes on Indoor Air Particular Matter Levels. Int. J. Environ. Res. Public Health 2020, 17, 2947.

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