The order of metal concentrations
in all milk and other dairy products are as
Zn > Cu > Pb > Se > Cd. The mean Pb concentrations can be ranked
as follows: white cheese > raw milk > pasteurized milk >
yoghurt > doogh. The highest concentration of Pb was observed
in white cheese (14.5 ± 2.5 lg kg1
), while doogh by
7.2 ± 1.29 lg kg1
, showed the lowest concentration (Table 3).
The Pb contents of cheese samples were high due to the
Pb-binding characteristic of casein (Coni et al., 1996)