Table 4 Average metal concentrations (ppb) of four tobacco samples for each metal in four different compartments of the waterpipe setup
From: Compartmental analysis of metals in waterpipe smoking technique
Metal concentration in ppb (fraction of total in sample) | |||||
|---|---|---|---|---|---|
Metal | Original sample | Ash residue | Water vessel | Smoke | Of which >0.045 μm |
U | 845.58 (1.00) | 42.37 (0.05) | 3.27 (0.004) | 799.946 (0.95) | 71.25 |
Cr | 22656.66 (1.00) | 4677.02 (0.21) | 262.99 (0.012) | 17716.645 (0.78) | 781.51 |
Fe | 212694.44 (1.00) | 62577.98 (0.29) | 2187.05 (0.010) | 147929.416 (0.70) | 1261517 |
Mg | 1169370.72 (1.00) | 404081.91 (0.35) | 37931.91 (0.032) | 727356.904 (0.62) | 40906.88 |
Mn | 21170.84 (1.00) | 10903.92 (0.52) | 35.48 (0.002) | 10231.429 (0.48) | 701.89 |
Mo | 532.72 (1.00) | 214.10 (0.40) | 8.60 (0.016) | 310.026 (0.58) | 22.98 |
Pb | 1329.66 (1.00) | 449.00 (0.34) | 37.47 (0.028) | 843.188 (0.63) | 294.56 |
Ni | 10154.03 (1.00) | 2216.33 (0.22) | 78.52 (0.008) | 7859.176 (0.77) | 1159.21 |
V | 578.94 (1.00) | 170.58 (0.29) | 25.23 (0.044) | 383.127 (0.66) | 29.50 |
Cu | 6694.65 (1.00) | 2179.41 (0.33) | 46.84 (0.007) | 4468.404 (0.67) | 735.82 |
Bi | 21.17 (1.00) | 5.71 (0.27) | 0.42 (0.020) | 15.043 (0.71) | 4.96 |