A latest German study has claimed that electronic cigarettes may not be a safe alternative to conventional smoking.

Compared to conventional cigarettes, which constantly emit smoke as the tobacco burns, the electronic equivalent only releases volatile substances when it is turned on.
But that is not the only difference between the two stimulants, as the WKI researchers observed.
"In the e-cigarette, vaporised substances create an aerosol of ultrafine particles which become even finer when inhaled into the lungs. These tiny nanodroplets disperse over time," said Dr Tobias Schripp, scientist at Fraunhofer WKI and study co-author.
"Conversely, the combustion process discharges solid particles that can remain in the surrounding air for a considerable time," said Schripp.
An e-cigarette comprises battery, atomizer, heating coil and a reservoir for the liquids used for producing vapour.
These liquids are heated up in the atomizer and vaporized at between 65 and 120 degrees Celsius. Propylene glycol is the most usual solvent; it produces the atomized mist that resembles smoke, according to a Fraunhofer statement.
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MEDINDIA




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