They call for urgent action to determine the extent of risks and call for federal regulation in the US

From diacetyl, a substance linked to a serious lung disease. , was found in 75% of flavored electronic cigarettes refills and tested by the researchers of the Faculty of Public Health Harvard University (Massachusetts, north-east). They published their findings in the December edition of the journal Environmental Health Perspectives.

Two other harmful substances were also detected in a large number of aromatic essences, including varieties prized by young vapoteurs like “cotton candy” or “cupcake”.

The US administration responsible for the safety and health at workplaces, as well as the food industry, have issued set garde for people working in contact diacetyl.

Inhaled, this substance can cause chronic bronchitis obliterans rare, first appeared there about ten years in the production plants workers breathed the scent of artificial butter flavoring used in popcorn.

“Diacetyl and other chemicals are also used in many artificial flavors for electronic cigarettes, such as fruits, alcoholic beverages and, in this research, candy, “said Joseph Allen, assistant professor of environmental health at Harvard University, a lead author.

There are on the market more than 7,000 fragrances in Electronic cigarettes, or “e-juice” liquid containing nicotine used as refill. As the popularity and use of cigarettes continues to grow, there is a lack of information on their potential effects on health, the researchers lament.