Despite many unanswered questions about e-cigarette safety, the impact on public health, and whether the products are effective at reducing tobacco smoking, e-cigarettes have swiftly penetrated the marketplace in the United States and abroad in both awareness and use. Sold by the major multinational tobacco and other companies, the devices are aggressively marketed in print, television and the Internet with messages similar to cigarette marketing in the 1950s and 1960s, even in the U.S. and other countries that have long banned advertising for cigarettes and other tobacco products.
In one indication of the swiftness by which the devices have been embraced, in the U.S. youth "ever use" of the devices rose from 3.3 percent in 2011 to 6.8 percent the following year; in Korea, youth "ever use" of e-cigarettes rose from .5 percent in 2008 to 9.4 percent in 2011. "Ever use" means whether one has smoked the product even just once.
Furthermore, most adults and youths who use e-cigarettes are engaging in "dual use" smoking both e-cigarettes and conventional cigarettes.
While most youth using e-cigarettes are dual users, up to a third of adolescent e-cigarette users have never smoked a conventional cigarette, indicating that some youth are starting use of the addictive drug nicotine with e-cigarettes.
The report also tackles secondhand exposure.
"E-cigarettes do not burn or smolder the way conventional cigarettes do, so they do not emit side-stream smoke; however, bystanders are exposed to aerosol exhaled by the user," said the authors. Toxins and nicotine have been measured in that aerosol, such as formaldehyde, acetaldehyde, acetic acid and other toxins emitted into the air, though at lower levels compared to convention
|Contact: Elizabeth Fernandez|
University of California - San Francisco