Mercury, Lead, Cadmium, and Barium Levels in Human Breast Milk and Factors Affecting Their Concentrations in Hamadan, Iran.

摘要: Breast milk is considered the best source of nutrition for all infants. However, exposure newborns to toxic metals special interest due their potential harmful effects. Thus, primary aims this study were determine concentration heavy including lead, mercury, cadmium, and barium in breast samples from Hamadan, Iran, relation some sociodemographic variables. A total 100 collected metal contents measured by inductively coupled plasma mass spectroscopy (ICP-MS). The median concentrations Pb, Hg, Ba 41.9, 2.8, 1.95 μg/L, respectively. Cd levels were < 1 μg/L samples. Pb level 94% was higher than recommended limit < 5 μg/L suggested World Health Organization (WHO). Hg 54% normal mean (1.7 μg/L) WHO. We found no correlation between factors. lower WHO’s proposed health-based drinking water guideline (0.7 mg/L). Considering results present vulnerability infants, along with well-known toxicity these metals, further studies are warranted identify main sources that contribute milk, establish harmless intake values develop preventive measures.