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Inhal Toxicol


Title:Comparison of the effects of e-cigarette vapor and cigarette smoke on indoor air quality
Author(s):McAuley TR; Hopke PK; Zhao J; Babaian S;
Address:"Consulting for Health, Air, Nature, & A Greener Environment, LLC (CHANGE), Corporate Headquarters, Queensbury, NY 12804-9358, USA. mcauleyt@airqualitychange.com"
Journal Title:Inhal Toxicol
Year:2012
Volume:24
Issue:12
Page Number:850 - 857
DOI: 10.3109/08958378.2012.724728
ISSN/ISBN:1091-7691 (Electronic) 0895-8378 (Linking)
Abstract:"CONTEXT: Electronic cigarettes (e-cigarettes) have earned considerable attention recently as an alternative to smoking tobacco, but uncertainties about their impact on health and indoor air quality have resulted in proposals for bans on indoor e-cigarette use. OBJECTIVE: To assess potential health impacts relating to the use of e-cigarettes, a series of studies were conducted using e-cigarettes and standard tobacco cigarettes. METHODS AND MATERIALS: Four different high nicotine e-liquids were vaporized in two sets of experiments by generic 2-piece e-cigarettes to collect emissions and assess indoor air concentrations of common tobacco smoke by products. Tobacco cigarette smoke tests were conducted for comparison. RESULTS: Comparisons of pollutant concentrations were made between e-cigarette vapor and tobacco smoke samples. Pollutants included VOCs, carbonyls, PAHs, nicotine, TSNAs, and glycols. From these results, risk analyses were conducted based on dilution into a 40 m(3) room and standard toxicological data. Non-cancer risk analysis revealed 'No Significant Risk' of harm to human health for vapor samples from e-liquids (A-D). In contrast, for tobacco smoke most findings markedly exceeded risk limits indicating a condition of 'Significant Risk' of harm to human health. With regard to cancer risk analysis, no vapor sample from e-liquids A-D exceeded the risk limit for either children or adults. The tobacco smoke sample approached the risk limits for adult exposure. CONCLUSIONS: For all byproducts measured, electronic cigarettes produce very small exposures relative to tobacco cigarettes. The study indicates no apparent risk to human health from e-cigarette emissions based on the compounds analyzed"
Keywords:"Adult Air Pollutants/adverse effects/analysis/toxicity Air Pollution, Indoor/adverse effects/*analysis Aldehydes/administration & dosage/analysis/toxicity Child Electrical Equipment and Supplies/*adverse effects Glycols/administration & dosage/adverse eff;"
Notes:"MedlineMcAuley, T R Hopke, P K Zhao, J Babaian, S eng Comparative Study Research Support, Non-U.S. Gov't England 2012/10/05 Inhal Toxicol. 2012 Oct; 24(12):850-7. doi: 10.3109/08958378.2012.724728"

 
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