Does e-cigarette consumption cause passive vaping?: Does e-cigarette consumption cause passive vaping?

Introduction:
This text is a scientific study examining the impact of electronic cigarettes (e-cigarettes) on indoor air quality. The study aims to determine the release of volatile organic compounds (VOC) and fine particles (FP/UFP) from an e-cigarette under controlled conditions in a test chamber. The study also analyzes the inhaled mixture in small chambers.

Key Points:

* The study found an increase in FP/UFP and VOC after the use of an e-cigarette.
* Prominent components in the gas-phase include 1,2-propanediol, 1,2,3-propanetriol, diacetin, flavorings, and traces of nicotine.
* The inhaled aerosol undergoes changes in the human lung that are attributed to deposition and evaporation.
* The study identified the released compounds under near-to-real-use conditions to estimate the effect of passive vaping.
* The present study provides first indications about the entry of VOCs and UFPs into the indoor environment connected with the use of electronic cigarettes.
* The study was performed in an 8-m3 stainless-steel emission test chamber, and the chamber blank was measured before each smoking event.
* The formaldehyde concentration in the chamber was continuously recorded every 30 seconds by an AL402 l formaldehyde auto analyzer.
* A fast mobility particle sizer (FMPS) recorded the particle number concentration of fine and ultrafine particles in the size range between 5.6 and 560 nm at 1 Hz in 32 channels.
* The concentrations of the exhaled compounds during e-cigarette consumption can be expected to differ with the composition of the applied 'liquids', the type of e-cigarette in use, the age of the e-cigarette, length of the puff, and interval between the puffs.

Main Message:
The study concludes that the consumption of e-cigarettes causes emissions of aerosols and VOCs, such as 1,2-propanediol, flavoring substances, and nicotine, into indoor air. These emissions can lead to the exposure of non-users, often referred to as passive vaping. Therefore, the study suggests that the impact of vapor inhalation into the human lung and the release of harmful chemicals into indoor air should be of primary concern when evaluating the health effects of e-cigarette consumption.

Schripp, T., D. Markewitz, E. Uhde, and T. Salthammer. “Does E-Cigarette Consumption Cause Passive Vaping?: Does e-Cigarette Consumption Cause Passive Vaping?” Indoor Air 23, no. 1 (February 2013): 25–31. https://doi.org/10.1111/j.1600-0668.2012.00792.x.