Comparison of Select Analytes in Exhaled Aerosol from E-Cigarettes with Exhaled Smoke from a Conventional Cigarette and Exhaled Breaths

International Journal of Environmental Research and Public Health

Gerald A. Long¹ 

[1] Lorillard Tobacco Company, P.O. Box 21688, Greensboro, NC 27420, USA; E-Mail

关键词: smoking;    vaping;    electronic cigarette;    e-cigarette;    aerosol;    carbonyl;    phenolic;    hydroxybenzene;    combustion;    nicotine;    emission;    passive vaping;   

DOI  :  10.3390/ijerph111111177

来源: mdpi

【 摘 要 】

Exhaled aerosols were collected following the use of two leading U.S. commercial electronic cigarettes (e-cigarettes) and a conventional cigarette by human subjects and analyzed for phenolics, carbonyls, water, glycerin and nicotine using a vacuum-assisted filter pad capture system. Exhaled breath blanks were determined for each subject prior to each product use and aerosol collection session. Distribution and mass balance of exhaled e-cigarette aerosol composition was greater than 99.9% water and glycerin, and a small amount (<0.06%) of nicotine. Total phenolic content in exhaled e-cigarette aerosol was not distinguishable from exhaled breath blanks, while total phenolics in exhaled cigarette smoke were significantly greater than in exhaled e-cigarette aerosol and exhaled breaths, averaging 66 µg/session (range 36 to 117 µg/session). The total carbonyls in exhaled e-cigarette aerosols were also not distinguishable from exhaled breaths or room air blanks. Total carbonyls in exhaled cigarette smoke was significantly greater than in exhaled e-cigarette aerosols, exhaled breath and room air blanks, averaging 242 µg/session (range 136 to 352 µg/session). These results indicate that exhaled e-cigarette aerosol does not increase bystander exposure for phenolics and carbonyls above the levels observed in exhaled breaths of air.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.