Virginia Commonwealth University Massey Cancer Center researchers at the VCU Center for the Study of Tobacco Products (CSTP) have developed the first-ever, evidence-based model that can predict with up to 90 percent accuracy the amount of nicotine emitted by an electronic cigarette. The study was published in the journal Nicotine and Tobacco Research.
The researchers, working in collaboration with investigators at the American University of Beirut, collected data about the voltage and other characteristics of various e-cigarette devices, the concentration of the liquid nicotine that could be put in the devices, and the length of time a user might inhale from the device in one puff. The team then developed a mathematical model to determine how much nicotine was emitted from the devices as the device voltage and the nicotine liquid concentration were increased and the user puff duration was extended. The model predicted that higher voltage e-cigarette devices paired with high-concentration nicotine liquids could emit greater levels of the addictive substance than those of a traditional tobacco cigarette, depending on user puff duration.