Secondhand Exposure to Vapors From Electronic Cigarette
Electronic cigarettes (commonly referred to as e-cigarettes) are designed to generate inhalable nicotine aerosol (vapour). When an e-cigarette user takes a puff, the nicotine solution is heated and the vapour is taken into the lungs. Although no sidestream vapour is generated between puffs, some of the mainstream vapour is exhaled by an e-cigarette user. The aim of the study was to evaluate 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 (PM2.5), carbon monoxide, and volatile organic compounds (VOCs) in an exposure chamber. We generated e-cigarette vapour from 3 various brands of e-cigarettes using a smoking machine and controlled exposure conditions. We also compared secondhand exposure with e-cigarette vapour and tobacco smoke generated by 5 dual users.
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 µg/m3. 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 µg/m3, respectively; p = .0081).
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 the health consequences of secondhand exposure to nicotine, especially among vulnerable populations, including children, pregnant women, and people with cardiovascular conditions.
We will gladly answer any questions you may have.Ask Questions
Stonebrook Dental offers the ability to request your dentist appointments online. Schedule an appointment now!Book Online
New Patient Forms
By filling out the New Patient Forms ahead of time you will save significant time on your visit.New Patient Forms