Comparing particulate emissions between electronic nicotine delivery devices: context for smoke-free indoor air quality
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1
Roswell Park Cancer Institute, Health Behavior, United States of America
2
University at Buffalo, United States of America
Publication date: 2018-03-01
Tob. Induc. Dis. 2018;16(Suppl 1):A718
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ABSTRACT
Background:
Smoke-free indoor air policy has been widely adopted in
some regions of the United States in order to protect bystanders from the
deleterious effects of indoor tobacco smoke exposure; however, similar
legislation has widely not been applied to ENDS devices. This study
investigated differences in PM2.5 matter emitted into the indoor
environment from a selection of ENDS products under controlled conditions.
Methods:
Sixteen smokers were recruited to vape in seven
individual sessions (one visit per week). During each visit, participants vaped
using one of seven different ENDS products. All vaping occurred within a
dedicated exposure chamber. Volunteers drew twenty puffs on their assigned
devices over a ten-minute exposure period. ENDS products tested included:
disposable, e-cigar, vaporizer, rechargeable, e-pipe, and e-Go devices. TSI
SidePaks were used to record both ambient and ENDS-associated unadjusted PM2.5
before, during, and after each exposure period. Statistical analysis was
performed using IBM SPSS Statistics Version 23.
Results:
The rechargeable device emitted the highest
amount of PM2.5 (µg/m3) on average (µ=21.6, σ=7.82). The
disposable device emitted the lowest amount of PM2.5 on average (µ=4.14,
σ=1.09). The difference in PM2.5 matter in the smoking chamber during each
session compared to ambient levels before each session was significant
(p< 0.05) by paired t-test for all devices except e-pipe, which was
borderline significant (p=0.053). The mean difference in PM2.5
emissions between the rechargeable device was significantly from e-cigar
(p=0.048), e-Go (p=0.048), and disposable (p=0.021) products.
Conclusions:
This study found that ENDS devices emit levels
of particulate matter into the indoor environment that are significantly higher
than ambient PM2.5 levels. Further, significant emission differences
were also detected between ENDS products. These findings suggest that
incorporating ENDS products into existing smoke-free indoor air policy would
protect non-users from side-stream exposure to ENDS aerosol.