Air pollution in perspective: Health risks of air pollution expressed in equivalent numbers of passively smoked cigarettes

Posted by Phil Hollins on Jun 30, 2016
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Authors: van der Zee, S.C., Fischer, P.H. and Hoek, G.

Year of publication: 2016

Publication: Environmental research, 148, pp.475-483

Keywords: particulate matter, NO2, Air pollution,

Link to publication

In order to create an effective communication tool to inform both public and policy makers of the risk factors of air pollution, this study from the Netherlands (2016) expressed the health effects of air pollution in an equivalent number of daily passively smoked cigarettes.

Using both epidemiological literature and meta-analyses, the research team expressed changes in PM2.5, nitrogen dioxide (NO2) and black carbon (BC) concentration into the equivalent number of passively smoked cigarettes. The increased risk to health was then assessed using the following measures; decreased lung function, low birth weight, lung cancer and cardiovascular mortality.

The findings of the study, indicate:

  • Across the four health endpoints assessed, an increase of 10 mg/m³ in PM2.5 and 1 mg/m³ in NO2 correspond to an average of 5.5, 2.5 and 4.0 passively smoked cigarettes per day

Furthermore, this research determined that:

  • Compared with ‘clean’ air, the health risk of living along a major freeway in Amsterdam is equivalent to 10 daily passively smoked cigarettes
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