Table 2: Toxic elements levels in pipe smokers human blood (μg/L).

No.Smo-
King
AgeCdPbHgSeMnZnCrNi

114/120.721.7BDL17.95.33475.5172.56.0
225/523.642.89.047.49.05004.0238.513.0
38/11BDL17.0BDL23.60.43987.3183.210.6
44/11BDL18.85.732.533.72780.4172.99.1

Smoking; period of smoking (y)/rate of smoking (number of pipes per day),
Age; 1= ≤25, 2= 26-40 y.