Lead levels in human breast milk and blood plasma or serum were analyzed and qualitatively their intelligence quotient (I.Q.) studied. Samples at different stages of lactation, from 5 days to 51 weeks post partum, were collected from 25 healthy breast-feeding mothers in Ranipet Industrial area of Vellore district of Tamil Nadu and from 25 lactating mothers in the non-industrial areas of the same district. The samples from mothers in non-industrial area showed lower lead levels ranging from 5 to 25 μg/L whereas samples from mothers in industrial area showed higher lead levels ranging between 15 and 44.5 μg/L. It was generally noticed that the lactating mothers from industrial area have lower I.Q. levels compared to mothers from non-industrial area.
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The authors thank VIT University, Vellore and Tychicus. D, Selvin James. S for their help in sample collection and determination of actual concentrations of toxicants.
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Isaac, C.P.J., Sivakumar, A. & Kumar, C.R.P. Lead Levels in Breast Milk, Blood Plasma and Intelligence Quotient: A Health Hazard for Women and Infants. Bull Environ Contam Toxicol 88, 145–149 (2012). https://doi.org/10.1007/s00128-011-0475-9
- Lead (Pb)
- Breast milk
- Intelligence quotient (I.Q.)