Investigation of cadmium and zinc level in human milk and it's related with industrial pollution in Lenjan region, Isfahan

ABSTRACT

Nowadays, human milk is a very important bioindex for biomonitoring of pollutants that its give much useful information about heavy metal concentrated in human body and amount of infant exposed with these pollutants. The aim of this study was to determine concentration of cadmium and zinc in the colostrums human milk from women living in the vicinity of a metal smelter and control area. In this research 63 numbers of human's milk Lenjan and 17 numbers of human's milk control area collected of this area hospitals four days after postpartum. The means of cadmium and zinc level in colostrums samples of Lenjan and control area region after four days after postpartum were 2.31, 0.772 micro g/l and 11.32, 5.568 mg/l, respectively. The estimate weekly intake of cadmium and daily intake zinc of breastfed infant in this study were in some case higher than provisional tolerance weekly intake [PTWI] recommended by FAO/WHO. The results of this study showed a significant mean difference in the average level of cadmium and zinc in breast milk of mothers of different groups living place of residence, but no significant differences in the different maternal age and weight groups were observed. Considering the parameters of the study questionnaire, the possibility that you can use rice Lenjan significantly increased zinc in breast milk has been