THEThe vapors of some flavored electronic liquids used in electronic cigarettes contain high levels of aldehydes, according to the results of a study published in the medical journal Environmental Science and Technology. Under the effect of heat, the aromas decompose into aldehydes, carcinogens, and other toxic elements which can cause health problems.
Researchers at the Desert Research Institute (DRI) in the United States used a controlled sampling system to simulate vaping conditions to measure the degree of toxicity of the vapor absorbed by smoking e-cigarettes.
Aromas from electronic cigarettes become toxic when heated
Tests performed for 12 different aldehydes have shown that the amount of potentially harmful compounds varies widely from brand to brand of e-liquid.
However, the study also showed that in general, a flavored puff of vapor contained aldehyde levels exceeding thresholds set by the United States Conference of Governmental Industrial Hygienists. They were multiplied by 1.5 to 270.
“A puff of any of the flavored liquids (e-liquids) we tested exposes the smoker to unacceptably dangerous levels of these aldehydes, most of which come from the thermal decomposition of flavoring compounds,” explained researcher Andrey Khylstov. in a press release. “These results demonstrate the need for further investigation into the effects of flavoring additives on the formation of aldehydes and other toxic compounds in e-cigarette vapors.”
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