The objectives of the present study were manyfold: first,
to investigate Cd and Pb concentrations in different brands
of tobacco cigarettes sold and/or produced in Saudi Arabia;
second, to find out if there are significant differences between
different cigarette brands in their heavy metal contents; third,
to estimate their (Cd and Pb) amounts in the mainstream
smoke according to Mussalo-Rauhamaa et al. [17] study;
fourth, to compare our data with the one published for other
parts of the world.