RESEARCH PAPERS

A 32-country comparison of tobacco smoke derived particle levels in indoor public places

A Hyland¹, M J Travers¹, C Dresler², C Higbee¹ and K M Cummings¹

¹ Roswell Park Cancer Institute, Department of Health Behavior, Elm and Carlton Streets, Buffalo, New York, USA
² International Agency for Research on Cancer, Tobacco and Cancer Group, Lyon, France

Correspondence to:
Andrew Hyland, Roswell Park Cancer Institute, Department of Health Behavior, Elm and Carlton Streets, Buffalo, NY 14263, USA; andrew.hyland{at}roswellpark.org

Objective: To compare tobacco smoke-derived particulate levels in transportation and hospitality venues with and without smoking in 32 countries using a standardised measurement protocol.

Methods: The TSI SidePak AM510 Personal Aerosol Monitor was used to measure the concentration of particulate matter less than 2.5 microns in diameter (PM_2.5) in 1822 bars, restaurants, retail outlets, airports and other workplaces in 32 geographically dispersed countries between 2003 and 2007.

Results: Geometric mean PM_2.5 levels were highest in Syria (372 µg/m³), Romania (366 µg/m³) and Lebanon (346 µg/m³), while they were lowest in the three countries that have nationwide laws prohibiting smoking in indoor public places (Ireland at 22 µg/m³, Uruguay at 18 µg/m³ and New Zealand at 8 µg/m³). On average, the PM_2.5 levels in places where smoking was observed was 8.9 times greater (95% CI 8.0 to 10) than levels in places where smoking was not observed.

Conclusions: Levels of indoor fine particle air pollution in places where smoking is observed are typically greater than levels that the World Health Organization and US Environmental Protection Agency have concluded are harmful to human health.

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