Science news and articles on health, environment, global warming, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate & bioengineering, computers, engineering ; medicine, math, physics, psychology, technology, and more from the world's leading research centers universities.

Toxins in e-cig vapor increase with heat and device use

0
IMAGE

Electronic cigarettes, or e-cigs, have grown in popularity as an alternative to traditional cigarette smoking. But health experts and consumer advocates have raised concerns over their safety. Now scientists report in ACS' journal Environmental Science & Technology new measurements of potentially toxic compounds in e-cigarette vapor and factors that affect these levels.

Hugo Destaillats and colleagues analyzed vapor from two different kinds of e-cig vaporizers filled with three different refill e-liquids. They identified several vapor components including glycidol — which hadn't previously been identified in e-cig vapor — formaldehyde and acrolein. The World Health Organization categorizes glycidol as a probable carcinogen, and acrolein is a powerful irritant. Testing also showed that increasing the voltage and heat in a single-coil vaporizer (as opposed to one with a double-coil) triples the aldehyde emissions per puff and bumped up the acrolein levels by a factor of 10. Additionally, the release of potentially toxic compounds increased with use. These compounds originate from thermal decomposition of propylene glycol and glycerin, two solvents used to formulate most e-liquids.

###

The authors acknowledge funding from the University of California Tobacco-Related Disease Research Program.

The paper's abstract will be available on July 27 here: http://pubs.acs.org/doi/abs/10.1021/acs.est.6b01741

The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With nearly 157,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact [email protected]

Follow us: Twitter | Facebook

Media Contact

ACS News Room
[email protected]
@ACSpressroom

http://www.acs.org

Leave A Reply

Your email address will not be published.