Nicotine is a marker for other toxic components of thirdhand smoke, but is also a concern in itself as nicotine can be changed into the highly toxic and carcinogenic tobacco-specific nitrosamine NNK, as shown by researchers at Lawrence Berkeley National Laboratory
Chang Y, Thornton V, Chaloemtoem A, Anokhin AP, Bijsterbosch J, Bogdan R, Hancock DB, Johnson EO, Bierut LJ
The tobacco industry targets youth with flavored products to encourage addiction
Selected campuses have also implemented the use of metal detectors to screen for vaping devices, and schools have promoted a 'peer vigilance culture', encouraging students to report instances of vaping among their classmates
A second group of mice were placed in a different inhalation chamber where they were exposed to air