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Table 4 Percentage contribution of individual PAH to the totals for each product type

From: Polycyclic aromatic hydrocarbons in US and Swedish smokeless tobacco products

 

Contribution of individual PAH to total (%)

Loose snus

Portion snus

Chewing tobacco

Dry snuff

Hard pellet

Soft pellet

Moist snuff

Plug

2-Ring

Naphthalene

24.2

25.8

6.7

1.0

33.2

0.5

1.1

14.7

1-methylnaphthalene

8.1

9.9

2.5

0.9

9.1

0.5

0.6

5.0

2-methylnaphthalene

4.4

6.2

1.3

0.7

5.0

0.5

0.5

2.6

3-Ring

Acenaphthylene

1.1

1.5

0.7

0.7

2.3

0.6

0.5

0.7

Acenaphthene

1.2

2.0

0.4

0.6

2.5

0.6

0.5

1.2

Fluorene

5.5

6.8

1.9

5.0

10.2

5.0

4.3

2.5

Phenanthrene

18.3

17.6

25.6

33.8

19.0

32.5

33.3

19.6

Anthracene

2.5

2.7

4.8

7.2

3.6

8.7

7.3

3.7

4-Ring

Fluoranthene

14.5

11.0

22.7

17.5

4.7

18.3

18.5

18.7

Pyrene

10.7

8.4

20.1

17.6

5.0

18.0

18.5

17.6

Benzo[a]anthracene

1.9

1.6

4.1

5.3

1.2

6.0

5.4

4.1

Chrysene

3.2

2.7

4.6

5.4

1.7

5.6

5.4

4.7

5-Ring

Benzo[b]fluoranthene

0.8

0.7

0.9

0.9

0.4

0.7

0.8

0.9

Benzo[k]fluoranthene

0.5

0.4

0.5

0.4

0.3

0.3

0.3

0.5

Benzo[j]fluoranthene

0.6

0.6

0.7

0.6

0.3

0.5

0.6

0.8

Benzo[e]pyrene

0.6

0.5

0.7

0.8

0.4

0.6

0.7

0.8

Benzo[a]pyrene

0.7

0.6

0.7

0.9

0.5

0.8

0.9

0.9

Perylene

0.2

0.2

0.1

0.1

NQ

0.1

0.1

0.1

Dibenz[a,h]anthracene

NQ

0.1

0.1

0.1

BDL

0.0

0.1

NQ

6-Ring

Indeno[1,2,3-cd]pyrene

0.5

0.3

0.4

0.4

0.2

0.2

0.4

0.4

Benzo[ghi]perylene

0.5

0.3

0.4

0.3

0.2

0.1

0.3

0.4

TOTAL

100

100

100

100

100

100

100

100

  1. NQ = Not quantified.
  2. BDL = Below detection limit.
  3. Based on average concentrations within each product type.