Effect of heating on Physicochemical Property of aerosols during Vaping.

Introduction:
This article investigates the contribution of heating on aerosol properties during vaping by using four common power settings in mods to conduct a physicochemical analysis.

Key Points:

* The aerosol mass and nicotine content in the aerosols increased at high power.
* high power led to aerosolization of a viscous component in the e-liquid, increasing the viscosity of aerosol.
* The ph of the aerosol was constant regardless of the applied power.
* high-power operation made nicotine prone to oxidation, resulting in the color of the aerosol turning yellow.
* E-cigarette aerosol could contain various metals, including aluminum, arsenic, cadmium, chromium, copper, iron, magnesium, nickel, lead, and zinc.
* Even though these metal contents proportionally increased with the power setting, they remained far below the recommended exposure limits.
* The heating conditions of the e-cigarette change the physicochemical properties of the aerosols and their metal contents, thereby possibly affecting users’ oral and respiratory systems.

Main Message:
The study demonstrates that the heating conditions of e-cigarettes change the physicochemical properties of the aerosols and their metal contents, potentially impacting users' oral and respiratory systems. This highlights the importance of regulating e-cigarette devices and their heating conditions to ensure the safety of users. It also emphasizes the need for further studies on the long-term health effects of e-cigarette use, particularly in relation to metal inhalation and its potential health risks.

Ko TJ, Kim Sa. Effect of heating on Physicochemical Property of aerosols during Vaping. International journal of environmental research and public health. 2022;19(3). doi:10.3390/ijerph19031892