| Menthol flavored EC | Tobacco flavored EC | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
EC1Pa | EC2Pb | EC1Pa | EC2Pb | |||||||||
Exp1 | Exp2 | Mean ± SD | Exp1 | Exp2 | Mean ± SD | Exp1 | Exp2 | Mean ± SD | Exp1 | Exp2 | Mean ± SD | |
Nicotine, μg/m3 | 0.6 | 0.5 | 0.55 ± 0.07 | 1.5 | 3.3 | 2.40 ± 1.27 | 1.1 | 2.7 | 1.90 ± 1.13 | 1.1 | 7.6 | 4.35 ± 4.60 |
Aerosol particles | ||||||||||||
PM2.5, μg/m3 | 2.7 | 1.8 | 2.25 ± 0.64 | 24.0 | 343.8 | 183.90 ± 226.13 | 3.7 | N.A. | – | 21.9 | 21.1 | 21.5 ± 0.57 |
Nanoparticle, ng/m3 | 492.7 | 497.8 | 495.25 ± 3.61 | 1,013.4 | 1,044.6 | 1,029.0 ± 22.06 | 1,230.6 | 1,655.2 | 1,442.90 ± 300.24 | 2,443.2 | 2,442.0 | 2,442.6 ± 0.85 |
Nanoparticle, #/cm3 | 5,430.0 | 5,631.0 | 5,530.50 ± 142.13 | 9,294.0 | 9,498.0 | 9,396 ± 144.25 | 10,940.0 | 12,688.0 | 11,814 ± 1,236.02 | 17,722.0 | 17,857.0 | 17,789.5 ± 95.46 |
PNC, #/cm3 | 7,256.0 | 8,481.0 | 7,868.50 ± 866.21 | 11,929.0 | 13,651.0 | 12,790 ± 1,212.64 | 15,242.0 | 16,835.0 | 16,038.5 ± 1,126.42 | 24,035.0 | 22,429.0 | 23,232.0 ± 1,135.61 |
Carbonyls | ||||||||||||
Acetaldehyde, ppb | 0.4 | <LOD | – | <LOD | <LOD | – | <LOD | <LOD | – | <LOD | <LOD | – |
Acetone, ppb | 0.4 | <LOD | – | <LOD | <LOD | – | <LOD | <LOD | – | 1.4 | 5.3 | 3.35 ± 2.76 |
VOCs | ||||||||||||
Ethanol, ppb | 29.9 | 13.7 | 21.8 ± 11.46 | <LOD | <LOD | – | 108.7 | 35.5 | 72.1 ± 51.76 | 17.8 | 15.7 | 16.75 ± 1.49 |
Acetonitrile, ppb | <LOD | <LOD | – | 0.5 | <LOD | – | <LOD | <LOD | – | 0.9 | <LOD | – |
Isopropyl alcohol, ppb | <LOD | 81.3 | – | <LOD | 26.8 | – | 10.5 | 58.8 | 34.65 ± 34.15 | 55.8 | 49.3 | 52.55 ± 4.60 |
Benzene, ppb | 2.6 | N.D. | – | 0.7 | 1.2 | 0.95 ± 0.35 | 0.5 | <LOD | – | <LOD | 6.6 | – |
Toluene, ppb | N.D. | N.D. | – | N.D. | N.D. | – | N.D. | N.D. | – | 1.5 | N.D. | – |