A study comparing secondhand emissions from e-cigarettes and conventional tobacco ones reveals that although e-cigarettes release much lower levels of most harmful compounds, they actually discharge more nickel and silver than tobacco cigarettes.
E-cigarettes are electronic devices that aerosolise nicotine-containing liquids, called e-liquids, for users to inhale. They have been widely marketed as safer alternatives to traditional cigarettes as they do not contain tobacco, and their use has rapidly risen over the last decade. However, little research exists on what effects e-cigarettes have on users or those in the vicinity.
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Particulate metals and organic compounds from electronic and tobacco-containing cigarettes: comparison of emission rates and secondhand exposure
Arian Saffari, Nancy Daher, Ario Ruprecht, Cinzia De Marco, Paolo Pozzi, Roberto Boffi, Samera H. Hamad, Martin M. Shafer, James J. Schauer, Dane Westerdahle and Constantinos Sioutas
Environ. Sci.: Processes Impacts, 2014, Advance Article
DOI: 10.1039/ C4EM00415A, Paper