Tob Control 22:172-179 doi:10.1136/tobaccocontrol-2012-050493
  • Review

Secondhand smoke exposure levels in outdoor hospitality venues: a qualitative and quantitative review of the research literature

  1. Simon Chapman3
  1. 1 Department of Social and Preventive Medicine, State University of New York at Buffalo, Buffalo, New York, USA
  2. 2 Department of Health Behavior, Roswell Park Cancer Institute, Buffalo, New York, USA
  3. 3 School of Public Health, University of Sydney, Sydney, Australia
  1. Correspondence to Andrea Licht, Department of Health Behavior, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA; andrea.licht{at}
  • Received 22 February 2012
  • Revised 5 November 2012
  • Accepted 7 November 2012
  • Published Online First 5 December 2012


Objective This paper considers the evidence on whether outdoor secondhand smoke (SHS) is present in hospitality venues at high levels enough to potentially pose health risks, particularly among employees.

Data sources Searches in PubMed and Web of Science included combinations of environmental tobacco smoke, secondhand smoke, or passive smoke AND outdoor, yielding 217 and 5,199 results, respectively through June, 2012.

Study selection Sixteen studies were selected that reported measuring any outdoor SHS exposures (particulate matter (PM) or other SHS indicators).

Data extraction The SHS measurement methods were assessed for inclusion of extraneous variables that may affect levels or the corroboration of measurements with known standards.

Data synthesis The magnitude of SHS exposure (PM2.5) depends on the number of smokers present, measurement proximity, outdoor enclosures, and wind. Annual excess PM2.5 exposure of full-time waitstaff at outdoor smoking environments could average 4.0 to 12.2 μg/m3 under variable smoking conditions.

Conclusions Although highly transitory, outdoor SHS exposures could occasionally exceed annual ambient air quality exposure guidelines. Personal monitoring studies of waitstaff are warranted to corroborate these modeled estimates.

Free sample

This recent issue is free to all users to allow everyone the opportunity to see the full scope and typical content of Tobacco Control.
View free sample issue >>

Don't forget to sign up for content alerts so you keep up to date with all the articles as they are published.

This insightful video is produced by Cancer Research UK

Navigate This Article