Heated tobacco products: Volatile emissions and their predicted impact on indoor air quality

The impact of heated tobacco product use on users and bystanders is on the same order of magnitude as those reported for e-cigarettes.
The presence of several harmful compounds in sidestream emissions highlights potential IAQ effects.
Based on the measurements and daily intake calculations, exposures to acrolein, benzene and acetaldehyde are significantly higher than relevant guidelines.Mass emissions were available for each agent. Key compound masses are summarized here.
Mainstream nicotine emission masses were 600 ± 140 μg for blue heatsticks, 990 ± 100 μg for amber heatsticks, and 702 ± 58 μg for yellow heatsticks. Sidestream nicotine emission masses were <0.09 μg for blue heatsticks, <0.09 μg for amber heatsticks, and <0.09 μg for yellow heatsticks.
Mainstream formaldehyde emission masses were 2.52 ± 0.08 μg for blue heatsticks, 2.33 ± 0.07 μg for amber heatsticks, and 2.31 ± 0.07 μg for yellow heatsticks. Sidestream formaldehyde emission masses were 0.9 ± 0.2 μg for blue heatsticks, 1.0 ± 0.2 μg for amber heatsticks, and 0.7 ± 0.1 μg for yellow heatsticks.
Mainstream acetaldehyde emission masses were 181 ± 31 μg for blue heatsticks, 151 ± 26 μg for amber heatsticks, and 151 ± 26 μg for yellow heatsticks. Sidestream acetaldehyde emission masses were 23.4 ± 5.9 μg for blue heatsticks, 24.2 ± 6.1 μg for amber heatsticks, and 18.6 ± 4.7 μg for yellow heatsticks.
Mainstream acrolein emission masses were 5.4 ± 0.7 μg for blue heatsticks, 4.9 ± 0.6 μg for amber heatsticks, and 5.3 ± 0.7 μg for yellow heatsticks. Sidestream acrolein emission masses were 0.6 ± 0.3 μg for blue heatsticks, 0.8 ± 0.3 μg for amber heatsticks, and 0.7 ± 0.3 μg for yellow heatsticks.
Mainstream diacetyl emission masses were 18.8 ± 3.9 μg for blue heatsticks, 16.4 ± 3.4 μg for amber heatsticks, and 16.8 ± 3.5 μg for yellow heatsticks. Sidestream diacetyl emission masses were 1.4 ± 0.5 μg for blue heatsticks, 1.4 ± 0.5 μg for amber heatsticks, and 1.3 ± 0.5 μg for yellow heatsticks.
Mainstream benzene emission masses were 2.7 ± 0.1 μg for blue heatsticks, 3.3 ± 0.1 μg for amber heatsticks, and 2.71 ± 0.1 μg for yellow heatsticks. Sidestream diacetyl emission masses were 0.08 ± 0.01 μg for blue heatsticks, 0.085 ± 0.013 μg for amber heatsticks, and 0.12 ± 0.02 μg for yellow heatsticks.
Mainstream phenol emission masses were 5.1 ± 0.2 μg for blue heatsticks, 5.6 ± 0.2 μg for amber heatsticks, and 3.1 ± 0.1 μg for yellow heatsticks. Sidestream phenol emission masses were 0.51 ± 0.08 μg for blue heatsticks, <0.09 μg for amber heatsticks, and <0.09 μg for yellow heatsticks.

Cancelada, L., et al. (2019). Heated tobacco products: Volatile emissions and their predicted impact on indoor air quality. Environmental science & technology.