Air Pollution and Health (JD Kaufman and SD Adar, Section Editors)

Current Environmental Health Reports

, Volume 2, Issue 4, pp 423-429

First online:

Particulate Matter from Electronic Cigarettes and Conventional Cigarettes: a Systematic Review and Observational Study

  • Esteve FernándezAffiliated withTobacco Control Unit, Cancer Prevention and Control Program, Institut Català d’Oncologia, WHO Collaborating Center for Tobacco Control, L’Hospitalet de LlobregatCancer Prevention and Control Group, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de LlobregatSchool of Medicine, Universitat de Barcelona Email author 
  • , Montse BallbèAffiliated withTobacco Control Unit, Cancer Prevention and Control Program, Institut Català d’Oncologia, WHO Collaborating Center for Tobacco Control, L’Hospitalet de LlobregatCancer Prevention and Control Group, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de LlobregatAddictions Unit, Institute of Neurosciences, Hospital Clínic de Barcelona
  • , Xisca SuredaAffiliated withTobacco Control Unit, Cancer Prevention and Control Program, Institut Català d’Oncologia, WHO Collaborating Center for Tobacco Control, L’Hospitalet de LlobregatCancer Prevention and Control Group, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de LlobregatDepartment of Preventive Medicine, Universidad de Alcalá
  • , Marcela FuAffiliated withTobacco Control Unit, Cancer Prevention and Control Program, Institut Català d’Oncologia, WHO Collaborating Center for Tobacco Control, L’Hospitalet de LlobregatCancer Prevention and Control Group, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de LlobregatSchool of Medicine, Universitat de Barcelona
  • , Esteve SaltóAffiliated withCancer Prevention and Control Group, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de LlobregatSchool of Medicine, Universitat de BarcelonaHealth Plan Directorate, Ministry of Health
  • , Jose M. Martínez-SánchezAffiliated withTobacco Control Unit, Cancer Prevention and Control Program, Institut Català d’Oncologia, WHO Collaborating Center for Tobacco Control, L’Hospitalet de LlobregatCancer Prevention and Control Group, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de LlobregatBiostatistics Unit, Department of Basic Sciences, Universitat Internacional de Catalunya

Abstract

Objectives

The aim of this study is to review the literature on the composition of aerosols from electronic cigarettes (e-cigarettes) originated by human vaping and to describe the emission of particulate matter ≤2.5 μm in diameter (PM2.5) from conventional and e-cigarettes at home in real-use conditions.

Methods

We conducted a systematic literature search in PubMed and Web of Science. We measured PM2.5 in four different homes: one from a conventional cigarette smoker, one from an e-cigarette user, and two from non-smokers.

Results

The review identified eight previous investigations on the composition of aerosols from e-cigarettes originated by human vaping and indicated that emissions from e-cigarettes can contain potential toxic compounds such as nicotine, carbonyls, metals, and organic volatile compounds, besides particulate matter. In the observational study, the PM2.5 median concentration was 9.88 μg/m3 in the e-cigarette user home and 9.53 and 9.36 μg/m3 in the smoke-free homes, with PM2.5 peaks concurrent with the e-cigarette puffs.

Conclusion

Both the literature review and the observational study indicate that e-cigarettes used under real-conditions emit toxicants, including PM2.5. Further research is needed to characterize the chemicals emitted by different types of e-cigarettes and to assess secondhand exposure to e-cigarette aerosol using biological markers.

Keywords

Tobacco smoke pollution Particulate matter Electronic cigarette E-cigarette Electronic nicotine delivery system