Vapes destroy the lungs with unknown substances Researchers from the United States have found thousands of unknown substances in aerosols of electronic cigarettes, as well as compounds whose presence is not declared by manufacturers. The article of scientists was published in the journal Chemical Research in Toxicology. Previous research on e-smoking tobacco products has focused on the toxic substances present in "regular" cigarettes. However, researchers from Johns Hopkins University decided to establish the full range of chemicals contained in both liquids and aerosols of e-cigarettes. The scientists used high-resolution liquid chromatography and mass spectrometry, previously only used to analyze organic matter in wastewater, food and blood. The researchers analyzed tobacco-flavored liquids from four well-known e-cigarette brands: Mi-Salt, Vuse, Juul, and Blu. More than two thousand compounds were found in them, most of which are unknown. Of those that the teams were able to identify, six were potentially dangerous. Three of this number have never been found in e-cigarettes before. In addition, the researchers found two industrial chemicals and a pesticide. The researchers also discovered hydrocarbon-like compounds associated with the combustion process, which, according to the manufacturers, does not occur during the vaping process.