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Environ Int. 2017 Oct;107:190-195. doi: 10.1016/j.envint.2017.07.014. Epub 2017 Jul 24.

Second-hand smoke generated by combustion and electronic smoking devices used in real scenarios: Ultrafine particle pollution and age-related dose assessment.

Author information

1
Department of Public Health and Infectious Diseases, Sapienza University of Rome, P.le Aldo Moro, 5, 00185 Rome, Italy.
2
Department of Technological Innovations, INAIL, Via IV Novembre 144, 00187 Rome, Italy.
3
Department of Technological Innovations, INAIL, Via IV Novembre 144, 00187 Rome, Italy; Department of Agricultural, Environmental and Food Sciences (DiAAA), University of Molise, via F. De Sanctis, 86100 Campobasso, Italy.
4
Department of Public Health and Infectious Diseases, Sapienza University of Rome, P.le Aldo Moro, 5, 00185 Rome, Italy. Electronic address: matteo.vitali@uniroma1.it.

Abstract

Aerosol measurements were carried out in a model room where both combustion (conventional and hand-rolled cigarettes, a cigar and tobacco pipe) and non-combustion (e-cigarette and IQOS®) devices were smoked. The data were used to estimate the dose of particles deposited in the respiratory systems of individuals from 3months to 21years of age using the multiple-path particle dosimetry (MPPD) model. Regardless of the smoking device, the highest doses were received by infants, which reached 9.88×108particles/kg bw during a cigar smoking session. Moreover, 60% to 80% of the particles deposited in the head region of a 3-month-old infant were smaller than 100nm and could be translocated to the brain via the olfactory bulb. The doses due to second-hand smoke from electronic devices were significantly lower, below 1.60×108particles/kg bw, than those due to combustion devices. Dosimetry estimates were 50% to 110% higher for IQOS® than for e-cigarettes.

KEYWORDS:

Age-related dose; Electronic smoking devices; IQOS®; Secondhand smoke; Traditional smoking products; Ultrafine particles

PMID:
28750224
DOI:
10.1016/j.envint.2017.07.014
[Indexed for MEDLINE]

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