Table 2.
Daily exposure to carbonyl compounds not analysed in the main paper.
| Voltage | Fixed | Adjustable | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nicotine concentration (mg/mL) | 6 | 18 | 6 | 18 | ||||||||
| N% | mean ± SD | Median (Q1-Q3) | N% | mean ± SD | Median (Q1-Q3) | N% | mean ± SD | Median (Q1-Q3) | N% | mean ± SD | Median (Q1-Q3) | |
| acrolein [µg/day] | 72 | *103.5 ± 361.08 | 5.15 (1.06–34.52) | 56 | *6.05 ± 8.1 | 1.31 (0.68–10.59) | 84 | *101.6 ± 296.82 | 15.16 (2.03–53.45) | 74 | *27.31 ± 52.82 | 5.1 (1.13–25.14) |
| acetone [µg/day] | 91 | *13.84 ± 12.59 | 10.22 (4.04–25.15) | 100 | 8.94 ± 7.53 | 6.21 (2.91–18.38) | 95 | *13.01 ± 11.92 | 9.09 (5.37–17.98) | 88 | *10.75 ± 10.02 | 8.49 (3.86–13.71) |
| propionaldehyde [µg/day] | 88 | *5.45 ± 15.01 | 1.54 (1.02–2.82) | 70 | *1.05 ± 0.9 | 0.85 (0.41–1.64) | 89 | *10.19 ± 20.15 | 2.21 (1.25–3.64) | 77 | *5.39 ± 10.45 | 1.61 (0.43–2.03) |
| crotonaldehyde [µg/day] | 12 | *1.01 ± 2.94 | 0.17 (0–0.52) | 7 | *0.46 ± 1.52 | 0 (0–0.32) | 25 | *1.48 ± 3.84 | 0.39 (0–0.89) | 26 | *0.62 ± 1.03 | 0.21 (0–0.64) |
| butyraldehyde [µg/day] | 44 | *0.83 ± 1.01 | 0.33 (0–1.89) | 53 | *0.88 ± 1.26 | 0.4 (0.13–1.45) | 40 | *1.25 ± 2.17 | 0.39 (0–1.73) | 47 | *0.57 ± 0.63 | 0.26 (0.11–1.22) |
| benzaldehyde [µg/day] | 53 | *3.84 ± 6.69 | 0.49 (0–8.2) | 47 | *1.56 ± 2.89 | 0.25 (0–1.27) | 47 | *1.84 ± 3.1 | 0.4 (0–2.79) | 53 | *1.43 ± 2.36 | 0.37 (0.2–1.15) |
| isovaleraldehyde [µg/day] | 14 | *0.15 ± 0.34 | 0 (0–0.3) | 11 | *0.19 ± 0.55 | 0 (0–0.21) | 7 | *0.18 ± 0.6 | 0 (0–0) | 2 | *0.03 ± 0.1 | 0 (0–0) |
| valeraldehyde [µg/day] | 81 | *11.33 ± 40.91 | 0.95 (0.39–3.17) | 77 | *0.88 ± 0.72 | 0.58 (0.32–1.31) | 89 | *13.95 ± 37.32 | 1.58 (0.51–4.2) | 86 | *3.15 ± 6.37 | 1.04 (0.47–2.06) |
| o-methylbenzaldehyde [µg/day] | 89 | *10.29 ± 7.79 | 8.24 (5.3–13.61) | 81 | *4.57 ± 4.28 | 2.99 (1.56–6.79) | 95 | *8.44 ± 6.04 | 8.04 (4.38–10.15) | 93 | *4 ± 1.84 | 3.57 (2.92–5.11) |
| m-methylbenzaldehyde [µg/day] | 9 | *0.55 ± 1.54 | 0 (0–0) | 2 | *0.13 ± 0.4 | 0 (0–0) | 25 | *1.03 ± 1.76 | 0 (0–2.37) | 11 | *0.48 ± 1.13 | 0 (0–0) |
| p-methylbenzaldehyde [µg/day] | 100 | 45.47 ± 56.17 | 31.19 (13.73–55.37) | 100 | 16.9 ± 16.12 | 10.28 (6.01–27.77) | 100 | 42.57 ± 35.07 | 32.77 (17.3–55.35) | 100 | 21.08 ± 13.51 | 18.52 (9.59–29.46) |
| hexanal [µg/day] | 53 | *36.87 ± 104.61 | 0.61 (0.38–24.45) | 47 | *16.66 ± 40.36 | 0.48 (0.36–4.1) | 37 | *24.14 ± 63.93 | 0.44 (0–20.05) | 39 | *7.74 ± 16.32 | 0.47 (0.2–5.66) |
| 2,5-dimetylobenzaldehyde [µg/day] | 5 | *0.2 ± 0.43 | 0 (0–0) | 4 | *0.17 ± 0.33 | 0 (0–0) | 5 | *0.19 ± 0.42 | 0 (0–0) | 0 | *0.16 ± 0.33 | 0 (0–0) |
N% percentage of samples above limit of quantification in the raw data; *mean value and standard deviation (SD) is only approximation, as artificial values were putted instead of BLQ and ND (see methodology); Q1 and Q3 –first and third quartile.