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Does e-cigarette consumption cause passive vaping?

 
: Schripp, T.; Markewitz, D.; Uhde, E.; Salthammer, T.

:

Indoor Air 23 (2013), No.1, pp.25-31
ISSN: 0905-6947
ISSN: 1600-0668
English
Journal Article
Fraunhofer WKI ()
electronic cigarette; indoor air quality; formaldehyde; ultrafine particle; propylene glycol; third-hand smoke

Abstract
Electronic cigarette consumption ('vaping') is marketed as an alternative to conventional tobacco smoking. Technically, a mixture of chemicals containing carrier liquids, flavors, and optionally nicotine is vaporized and inhaled. The present study aims at the determination of the release of volatile organic compounds (VOC) and (ultra)fine particles (FP/UFP) from an e-cigarette under near-to-real-use conditions in an 8-m3 emission test chamber. Furthermore, the inhaled mixture is analyzed in small chambers. An increase in FP/UFP and VOC could be determined after the use of the e-cigarette. Prominent components in the gas-phase are 1,2-propanediol, 1,2,3-propanetriol, diacetin, flavorings, and traces of nicotine. As a consequence, 'passive vaping' must be expected from the consumption of e-cigarettes. Furthermore, the inhaled aerosol undergoes changes in the human lung that is assumed to be attributed to deposition and evaporation.

: http://publica.fraunhofer.de/documents/N-214261.html