Brand Cigarillos — A Cheap and Less Harmful Alternative to Cigarettes? Particulate Matter Emissions Suggest Otherwise

Background: Environmental tobacco smoke (ETS)-associated particulate matter (PM) constitutes a considerable health risk for passive smokers. It ought to be assessed separately from the other known toxic compounds of tobacco smoke. Brand-specific differences between cigarettes and particularly between cigarettes and favorably taxed cigarillos, are of public interest and therefore worth being investigated. Methods: An automatic environmental tobacco smoke emitter (AETSE) was developed to generate cigarette and cigarillo smoke in a reliable and reproducible way. John Player Special (JPS) Red cigarettes, JPS filter cigarillos and 3R4F standard research cigarettes were smoked automatically in a 2.88 m(3) glass chamber according to a standardized protocol until 5 cm from the top were burned down. Results: Mean concentrations (C(mean)) and area of the curve (AUC) of PM(2.5) were measured and compared. C(mean )PM(2.5) were found to be 804 µg/m(3 )for 3R4F reference cigarettes, 1633 µg/m(3) for JPS cigarettes, and 1059 µg/m(3 )for JPS filter cigarillos. AUC PM(2.5)-values are 433,873 µg/m(3)×s for 3R4F reference cigarettes, 534,267 µg/m(3)×s for JPS Red cigarettes and 782,850 µg/m(3)×s for JPS filter cigarillos. Conclusion: Potential brand-specific differences of ETS-associated PM emissions among brands of cigarettes, and between cigarettes and cigarillos of the same brand and size should be investigated and published. Information about relative PM-emissions should be printed on the package.