Table 2.
Concentration of lead (Pb) in µg/g of e-liquid for the purchased cigalike ENDS cartridges.
| Brand | Flavor | Purchases | ||||
|---|---|---|---|---|---|---|
| Lead µg/g | ||||||
| 1 | 2 | 3 | 4 | Average | ||
| Blu | Classic tobacco | 0.27 (0.03) a,b | 0.87 (0.04) | 18 (1) | 1.2 (0.2) | 5.1 (8) |
| Carolina bold | BLQ d | 2.1 (0.6) | 0.15 (0.01) | N/A c | 1.3 (1) | |
| Magnificent menthol | 180 (20) | 47 (30) | 23 (1) | 5.3 (0.5) | 62 (70) | |
| Cherry crush | 0.24 (0.01) | N/A | 22 (0.7) | 0.65 (0.05) | 8.5 (10) | |
| MarkTen | Classic | BLQ | BLQ | BLQ | BLQ | UTD e |
| Menthol | BLQ | BLQ | BLQ | BLQ | UTD | |
| Summer fusion | BLQ | BLQ | BLQ | BLQ | UTD | |
| Winter mint | BLQ | BLQ | BLQ | BLQ | UTD | |
| Vuse Solo | Original | BLQ | BLQ | 0.01 (0.00) | BLQ | 0.01 (0.00) |
| Menthol | BLQ | BLQ | 0.01 (0.00) | BLQ | 0.01 (0.00) | |
| Mint | BLQ | BLQ | 0.02 (0.00) | N/A | 0.02 (0.00) | |
| Berry | BLQ | BLQ | 0.03 (0.01) | BLQ | 0.03 (0.00) | |
| Chai | BLQ | BLQ | BLQ | BLQ | UTD | |
| Crema | BLQ | BLQ | BLQ | BLQ | UTD | |
| Vuse Vibe | Original | BLQ | BLQ | 11 (1) | 1.1 (0.5) | 5.9 (5) |
| Menthol | N/A | BLQ | N/A | 61 (0.4) | 61 (0.4) | |
| Nectar | 0.14 (0.00) | BLQ | BLQ | 21 (3) | 10 (10) | |
| Melon | BLD | 1.0 (0.8) | 290 (50) | 97 (100) | 130 (100) | |
| Blank | Propylene glycol | BLQ | ||||
| Glycerol | BLQ | |||||
All samples for which the mean lead concentration is equal to or exceeds the USP limits for lead in inhaled drug products (0.2 μg/g) are bolded.
aConcentrations are reported as mean (standard deviation), n = 3.
bBold indicates the mean metal concentration exceeded the USP limit for an inhaled product.
cN/A indicates the brand and flavor combination was unavailable during the purchase attempt.
dBelow lower limit of quantitation (BLQ).
eUnable to determine (UTD).