Effect of power level on the yield of total aerosol mass and formation of aldehydes in e-cigarette aerosols
The study objective was to determine the effect of power applied to the atomizer of refillable tank-based e-cigarette (EC) devices. Five different devices were evaluated, each at four power levels. Aerosol samples were collected using a 55 mL puff with a four second duration. Aerosol results will be reported for each puff block as mass/puff and normalized for the power applied to the coil in mass/watt. The range of aerosol produced on a per puff basis ranged from 2.5 to 34.4 mg, and, normalized for power applied to the coil, ranged from 0.38 to 1.38 mg/watt. Aerosol samples were also analysed for the production of formaldehyde, acetaldehyde, and acrolein at each power level. The amount of formaldehyde, acetaldehyde, and acrolein produced per puff ranged from 0.04 to 74.4 µg, 0.05 to 56.1 µg, and <0.02 to 12.9 µg, respectively. The amount of formaldehyde, acetaldehyde, and acrolein produced per mg of aerosol produced was from 0.009 to 9.49 µg, 0.004 to 7.16 µg, and <0.002 to 1.65 µg, respectively. These results were used to estimate daily exposure to formaldehyde, acetaldehyde, and acrolein from EC aerosols, and were compared to estimated daily exposure from both consumption of cigarettes and to workplace exposure limits. Two of the devices produced aerosol that exceeded aldehyde workplace exposure limits and the estimated exposure due to combustible cigarettes usage. The other three devices produced aldehyde amounts below both the estimated exposure due to combustible cigarettes usage and a workplace exposure limit.
Authors and affiliations:
GILLMAN I.G.; STEWART E.W.; PAOLANTONIO A.R.
Enthalpy Analytical Inc, Durham, NC USA
TSRC, Tob. Sci. Res. Conf., 2015, 69, abstr. 94