Chemical analysis of snus products from the United States and northern Europe
Fig 1
Total and unprotonated nicotine concentrations (mg/g, wet weight) for all US snus (USALL), all Northern Europe snus (NEALL), all NE snus with “standard” descriptors (NEStd) and all NE snus with “strong” descriptors (NEStrg).
Note: USALL (n = 8: all 8 portion); NEALL (n = 56: 7 loose and 49 portion); NEStd. (n = 39: 6 loose and 33 portion); NEStrg (n = 17: 1 loose and 16 portion).