Changes in blood lead after cessation of breasfeeding

摘要

We have monitored seven subjects postpartum for periods ranging form 9 to 22 months to observe the changes in blood lead (PbB) isotope ratios and leach concentrations as a function of length of breastfeeding. The length of breastfeeding varied form 1 day to 14 months. These subjects were part of a larger cohort who had been monitored pre-pregnancy, during pregnancy and for 6 months postpartum to establish the validity of the mechanism of mobilization of lead form the maternal skeleton.