The blood lead concentrations were measured in 38 pregnant women and their newborn babies in a high exposure area. The lead content of human milk was also determined on the 5th day after delivery. The blood lead concentrations were higher than 12 micrograms/100 ml in more than 80 per cent of the samples. The lead content of breast milk was also greater than those of published recently. We found a strong correlation between the blood lead levels of the mothers and the newborns. There was a moderate correlation between the lead concentrations in the blood and the breast milk.