Comparison of select analytes in aerosol from e-cigarettes with smoke from conventional cigarettes and with ambient air

Tayyarah, Rana
Long, Gerald A.

Open link

Publication date

December 2014

DOI

10.1016/j.yrtph.2014.10.010

Publisher

The Authors. Published by Elsevier Inc.

Abstract

AbstractLeading commercial electronic cigarettes were tested to determine bulk composition. The e-cigarettes and conventional cigarettes were evaluated using machine-puffing to compare nicotine delivery and relative yields of chemical constituents. The e-liquids tested were found to contain humectants, glycerin and/or propylene glycol, (⩾75% content); water (<20%); nicotine (approximately 2%); and flavor (<10%). The aerosol collected mass (ACM) of the e-cigarette samples was similar in composition to the e-liquids. Aerosol nicotine for the e-cigarette samples was 85% lower than nicotine yield for the conventional cigarettes. Analysis of the smoke from conventional cigarettes showed that the mainstream cigarette smoke delivered approximately...