« Previous AbstractResolving Coffee Roasting-Degree Phases Based on the Analysis of Volatile Compounds in the Roasting Off-Gas by Photoionization Time-of-Flight Mass Spectrometry (PI-TOFMS) and Statistical Data Analysis: Toward a PI-TOFMS Roasting Model    Next AbstractPlant bioassay to assess the effects of allelochemicals on the metabolome of the target species Aegilops geniculata by an NMR-based approach »

Nicotine Tob Res

Title:		Secondhand exposure to vapors from electronic cigarettes
Author(s):		Czogala J; Goniewicz ML; Fidelus B; Zielinska-Danch W; Travers MJ; Sobczak A;
Address:		"Department of General and Analytical Chemistry, School of Pharmacy and Laboratory Medicine, Medical University of Silesia, Sosnowiec, Poland;"
Journal Title:		Nicotine Tob Res
Year:		2014
Volume:		20131211
Issue:		6
Page Number:		655 - 662
DOI:		10.1093/ntr/ntt203
ISSN/ISBN:		1469-994X (Electronic) 1462-2203 (Print) 1462-2203 (Linking)
Abstract:		"INTRODUCTION: Electronic cigarettes (e-cigarettes) are designed to generate inhalable nicotine aerosol (vapor). When an e-cigarette user takes a puff, the nicotine solution is heated and the vapor is taken into lungs. Although no sidestream vapor is generated between puffs, some of the mainstream vapor is exhaled by e-cigarette user. The aim of this study was to evaluate the secondhand exposure to nicotine and other tobacco-related toxicants from e-cigarettes. MATERIALS AND METHODS: We measured selected airborne markers of secondhand exposure: nicotine, aerosol particles (PM(2.5)), carbon monoxide, and volatile organic compounds (VOCs) in an exposure chamber. We generated e-cigarette vapor from 3 various brands of e-cigarette using a smoking machine and controlled exposure conditions. We also compared secondhand exposure with e-cigarette vapor and tobacco smoke generated by 5 dual users. RESULTS: The study showed that e-cigarettes are a source of secondhand exposure to nicotine but not to combustion toxicants. The air concentrations of nicotine emitted by various brands of e-cigarettes ranged from 0.82 to 6.23 microg/m(3). The average concentration of nicotine resulting from smoking tobacco cigarettes was 10 times higher than from e-cigarettes (31.60+/-6.91 vs. 3.32+/-2.49 microg/m(3), respectively; p = .0081). CONCLUSIONS: Using an e-cigarette in indoor environments may involuntarily expose nonusers to nicotine but not to toxic tobacco-specific combustion products. More research is needed to evaluate health consequences of secondhand exposure to nicotine, especially among vulnerable populations, including children, pregnant women, and people with cardiovascular conditions"
Keywords:		Adult Aerosols/analysis Air Pollutants/*analysis Carbon Monoxide/analysis *Electronic Nicotine Delivery Systems Environmental Exposure/*analysis Humans Male Middle Aged Nicotine/*analysis Particulate Matter/analysis *Smoking Tobacco Smoke Pollution Volati;
Notes:		"MedlineCzogala, Jan Goniewicz, Maciej L Fidelus, Bartlomiej Zielinska-Danch, Wioleta Travers, Mark J Sobczak, Andrzej eng P30 CA016056/CA/NCI NIH HHS/ Research Support, Non-U.S. Gov't England 2013/12/18 Nicotine Tob Res. 2014 Jun; 16(6):655-62. doi: 10.1093/ntr/ntt203. Epub 2013 Dec 11"