E-cigarettes (without comparison to other products)

2013

Electronic Cigarettes: A Short Review

Bertholon J.F., Becquemin M.H., Annesi-Maesano I., Dautzenberg B.
Published online: 23 May 2013

From our review of the literature and bearing in mind the long experience with theatrical mists, the short-term toxicity can be considered to be very low

Many smokers see the e-cigarette as a good way to quit smoking

2014

Peering through the mist: systematic review of what the chemistry of contaminants in electronic cigarettes tells us about health risks

Igor Burstyn
Published online: 9 Jan 2014

Threshold Limit Values (TLVs), were conducted under “worst case” assumptions about both chemical content of aerosol and liquids as well as behaviour of vapers.

There was no evidence of potential for exposures of e-cigarette users to contaminants that are associated with risk to health at a level that would warrant attention if it were an involuntary workplace exposures.

Current state of knowledge about chemistry of liquids and aerosols associated with electronic cigarettes indicates that there is no evidence that vaping produces inhalable exposures to contaminants of the aerosol that would warrant health concerns by the standards that are used to ensure safety of workplaces. However, the aerosol generated during vaping as a whole (contaminants plus declared ingredients) creates personal exposures that would justify surveillance of health among exposed persons in conjunction with investigation of means to keep any adverse health effects as low as reasonably achievable.

Exposures of bystanders are likely to be orders of magnitude less, and thus pose no apparent concern.

2016

Characterization of potential impurities and degradation products in electronic cigarette formulations and aerosols

Jason W.Flora, Naren Meruva, Chorng B. Huang, Celeste T. Wilkinson, Regina Ballentine, Donna C. Smith, Michael S. Werley, Willie J. McKinney
Published online: Feb 2016

Most potential impurities or degradation products were not detectable.

Impurities or degradation products found were below occupational exposure limits.

2018

Metal emissions from e-cigarettes: a risk assessment analysis of a recently-published study

Konstantinos E. Farsalinos, Brad Rodu
Published online: 2 Nov 2018

EC emissions contain trace levels of metals. For almost all metals, unrealistically high levels of liquid need to be consumed in order for total daily exposure to exceed established limits.