Scientifically proving this phenomenon has been difficult, in part due to the lack of studies in animal models and the limited ability in collecting data from individual users, due to marijuana's illegal status
This is the first paper that actually shows that the concentrations in the aerosol that people are inhaling are actually comparable to limits that are health-based limits, she adds, noting that additional research involving the same 56 vapors found levels of nickel and chromium in people's urine and saliva related to levels measured in the vapors confirming that the e-cigarette users were exposed to the metals. E-cigarettes are battery-powered devices that use a metal coil to heat up liquid nicotine and convert it into a mist, or vapor, that users inhale
Fa-Binefa M, Clar A, Prez-Fernndez S, Grau M, Dgano IR, Marti-Lluch R, et al
But its nothing to be concerned about in the UK as e-liquids are heavily regulated
Thank you that Im healthy