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Table 2 Exposure predictions for volatile organic compounds based on analysis of aerosols generated by volunteer vapers

From: Peering through the mist: systematic review of what the chemistry of contaminants in electronic cigarettes tells us about health risks

Compound

N#

Estimated concentration in personal breathing zone (ppm)

Ratio of most stringent TLV (%)

Reference

Calculated directly

Safety factor 10

2-butanone (MEK)

3

0.04

0.02

0.2

[4]

1

0.002

0.0007

0.007

[6]

2-furaldehyde

3

0.01

0.7

7

[4]

Acetaldehyde

3

0.07

0.3

3

[4]

Acetic acid

3

0.3

3

30

[4]

Acetone

3

0.4

0.2

2

[4]

Acrolein

1

<0.001

<0.7

<7

[6]

Benzene

3

0.02

3

33

[4]

Butyl hydroxyl toluene

1

4E-05

0.0002

0.002

[6]

Isoprene

3

0.1

7

70

[4]

Limonene

3

0.009

0.03

0.3

[4]

1

2E-05

0.000001

0.00001

[6]

m,p-Xyelen

3

0.01

0.01

0.1

[4]

Phenol

3

0.01

0.3

3

[4]

Propanal

3

0.004

0.01

0.1

[4]

Toluene

3

0.01

0.07

0.7

[4]

  1. #Average is presented when N > 1.