TABLE 4.
Comparison of total quantities of cigarette smoke (3R4F) and aerosol (ePen2), and their major smoke/aerosol components.
| Components (mg/puff) | ePen2CM | ePen2DC | ePen2GT | 3R4F (ISO) | 3R4F (ISO-I) |
|---|---|---|---|---|---|
| ACM/TPM | 3.77 ± 0.41 | 3.69 ± 0.42 | 3.54 ± 0.52 | 1.14 ± 0.12 | 4.29 ± 0.25 |
| Water | 0.99 ± 0.11 | 0.98 ± 0.07 | 0.92 ± 0.10 | 0.086 ± 0.015 | 1.38 ± 0.13 |
| Nicotine | 0.052 ± 0.006 | 0.049 ± 0.006 | 0.047 ± 0.08 | 0.085 ± 0.014 | 0.185 ± 0.008 |
| VG | 1.47 ± 0.16 | 1.90 ± 0.09 | 1.52 ± 0.17 | 0.10 ± 0.005 | 0.22 ± 0.005 |
| PG | 1.05 ± 0.11 | 0.73 ± 0.05 | 0.67 ± 0.10 | <LOQ a | 0.002 ± 0.005 |
| Balance | 0.21 | 0.03 | 0.39 | 0.87 | 2.50 |
| Balance (% of ACM/TPM) | 5.6 | 0.8 | 11 | 76 | 58 |
<LOQ—below limit of quantification, i.e. not quantifiable, ACM–aerosol collected mass from the e-cigarettes; TPM–total particulate matter from the tobacco cigarette; Balance–TPM less water, nicotine, glycerol and propylene glycol; ISO-I–Iso-Intense; VG–Glycerol; PG–propylene glycol.
a
LOQ = 0.001 mg/puff.