| |
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.
|
–
|
-
N. D not detected, N. A not available, LOD limit of detection, Exp1 first experiment, Exp2 repeat analysis of Exp1
-
aExperiments using 2 ECs in the smoking machine at a frequency of 1 puff per min
-
bExperiments using 2 ECs in the smoking machine at a frequency of 2 puffs per min
