Throughsmoking, important flux of heavy metals and many
other toxins reaches smokers ' lungs. This project reports the heavy metal
concentrations in tobacco from samples of 25 cigarette products, sold in
Palestine. Cadmium (Cd), lead (Pb), cobalt (Co), nickel (Ni), copper (Cu) and
zinc (Zn) contents were determined in 25 brands of tobacco cigarette commonly
available in Palestine by flam atomic absorption spectrophotometer. The
concentration of trace metals in the cigarettes ranged, Cd: from 0.85 to 2.11 μg/g with mean
1.20±0.15 μg/g, Pb: 2.21 to 5.06 μg/g with mean 3.12±1.33 μg/g, Co: 0.18 to
2.61 μg/g with mean 1.09±0.28 μg/g, Ni: 3.42 to 6.23 μg/g with mean 4.92±0.53
μg/g, Cu: 11.86 to 20.35 μg/g with mean 15.21±0.34 μg/g, and Zn: 30.55 to
114.43 μg/g with mean 51.15±0.14 μg/g.
Comparable results of trace metals are obtained in both
imported and Palestinian cigarettes. The average trace metal contents of
cigarettes available and sold in Palestine are Cd:0.82 μg/cigarette with range
(0.60– 1.70) μg/cigarette,
Pb: 2.13 μg/cigarette with range (1.41 – 3.54) μg/cigarette,
Co: 0.74 μg/cigarette with range (0.12– 2.02) μg/cigarette,
Ni: 3.37μg/cigarette with range (2.57– 5.66) μg/cigarette Cu: 10.42 μg/cigarette
with range ( 7.80– 20.11)
μg/cigarette, Zn: 35.02μg/cigarette
with range (20.10- 88.80)μg/cigarette.
The results indicate that smoking and exposure to cigarette smoke is a serious
problem to be taken into account when carrying out epidemiological studies on
human exposure to trace metals.
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