An American study showed that deep inhalation of electronic cigarettes carries a risk of cancer five to 15 times greater than smoking regular cigarettes.
According to the study published in the New England Journal of Medicine, the high-temperature vapor of electronic cigarettes saturated with nicotine can form formaldehyde, which makes it dangerous to health.
The authors of the study, researchers at the University of Portland, wrote: “We have noticed that formaldehyde can be formed during the e-cigarette vapor formation process.”
The researchers used a device that “sniffs” e-cigarette vapor to determine how the carcinogen was formed from a liquid compound of nicotine, fragrance, propylene-glycol and glycerine.
Scientists did not record the formation of the carcinogenic substance when the steam was heated on an electric current of 3.3 volts, but at the level of 5 volts, the concentration of formaldehyde in the vapor became higher than in the smoke of regular cigarettes.
Thus, an e-cigarette smoker who consumes three milliliters of vaporized liquid may inhale 14 milligrams of the carcinogen.
