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An upcoming study in the peer-reviewed journal Nicotine and Tobacco Research
says that some tank-style e-cigarettes emit cancer-causing formaldehyde
in their vapor at levels similar to traditional tobacco cigarettes. The New York Times, which revealed the findings ahead of publication, says a second study confirms the results.
The
problem seems to be that some tank-style e-cigarettes (the larger,
refillable style that vaporize liquid nicotine) get so hot, they cause
formaldehyde to form in the vapor they put out.
The finding comes on the heels of the FDA's proposal to regulate e-cigs under the same rules
as traditional combustible tobacco. However, those proposed rules would
focus on the ingredients that go into e-cig juice, not on the chemical
makeup of the vapor that comes out. So far, e-cig emissions (the content
of the vapor they produce) is an unregulated area.
It's
a complicated area of study, in part because there are so many various
manufacturers of e-cigs, and the products are largely non-standardized.
One of the studies, performed at the Roswell Park Cancer Institute in
Buffalo, found that levels of carcinogens increased markedly when the
battery output of the tank-style e-cigs was boosted from 3.2 volts to
4.8 volts.
Then
there's the way that consumers use e-cigs: the higher heat that
scientists say creates carcinogens also produces more potent vapor. Many
e-cig tinkerers boost the heat output of their devices, or dribble
liquid nicotine directly on the heating element for a more intense
vapor. The researchers say dripping puts out carcinogen levels that
approach the concentration found in old-fashioned cigarettes.
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Dr.
Alan Shihadeh at the Virginia Commonwealth University's Center for the
Study of Tobacco Products, who led one of the studies, acknowledged that
while the e-cig study only examined a handful of carcinogens,
traditional cigarettes put out dozens of cancer-causing compounds.
As he told The New York Times:
The studies will be published beginning May 15th. Until then, maybe you should hold off on the heavy-duty vaping. E-cigs may not be exactly the same as the dead leaves Don Draper smoked, but this particular similarity isn't all that enticing.If I was in a torture chamber and you said I had to puff on something, I'd choose an e-cigarette over a regular cigarette. But if you said I could choose an e-cigarette or clean air, I'd definitely choose clean air. And I definitely wouldn't drip.
E-cig has been rooted in people's life which has been a fashion now. However, as Dr. Alan Shihadeh said:"if you said I could choose an e-cigarette or clean air, I'd definitely choose clean air." We need try to avoid tobacco or analogue， however, you'd better choose e-cig if you cannot abandon the addiction at all.
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