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Seidenberg, Andrew

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Seidenberg

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Seidenberg, Andrew

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    Indoor Secondhand Tobacco Smoke Emission Levels in Six Lebanese Cities
    (BMJ Group, 2010) Saade, Georges; Seidenberg, Andrew; Rees, Vaughan; Otrock, Zaher; Connolly, Gregrory
    Background: To date, Lebanon has failed to enact comprehensive clean indoor air laws despite ratification of the Framework Convention on Tobacco Control (FCTC), which calls for the protection of non-smokers from exposure to secondhand tobacco smoke (SHS). Complicating the problem of SHS exposure in Lebanon is the widespread use of the tobacco water-pipe. While most research on SHS has involved cigarette smoking as a source of emissions, other sources, including tobacco water-pipes, may be an important contributor. Methods: \(PM_{2.5}\) concentrations \((\mu g/m^3)\) were measured in a sample of 28 public venues located in six major Lebanese cities. Active smoker density (number of smokers\(/100 m^3\)) was calculated for both water-pipe and cigarette smokers. Venues were then categorised as having higher density of water-pipe smokers or higher density of cigarette smokers, and resultant emission levels were compared between the two groups. Results: Cigarette and water-pipe smoking was observed in 14 venues, while cigarette smoking only and water-pipe smoking only were found in 12 venues and one venue, respectively. Among all smoking-permitted venues, the mean \(PM_{2.5}\) concentration was \(342 \mu g/m^3\). Venues with a higher density of water-pipe smokers \((n =14)\) showed a similar median \(PM_{2.5}\) concentration \(349 \mu g/m^3\) compared with venues with a higher density of cigarette smokers \((n =13; 241 \mu g/m^3; p=0.159)\). The mean \(PM_{2.5}\) concentration in the single venue with a voluntary smoke-free policy was \(6 \mu g/m^3\). Conclusions: Despite ratification of the FCTC in 2005, both cigarette and water-pipe smoking are commonly practised in enclosed public places throughout Lebanon, leading to unsafe levels of indoor particulate pollution. Smoke-free policies are needed in Lebanon to protect the public's health, and should apply to all forms of tobacco smoking.