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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.