Blood lead concentrations of 6-month-old infants whose umbilical cords were clamped 10 seconds after birth were compared with those whose umbilical cords were clamped two minutes after birth. The earlier clamping, which decreases infant iron status, was associated with an elevated blood lead level in infants with higher postnatal lead exposure-those born with higher placental blood lead concentrations and breast-fed infants who did not receive iron-fortified formula or milk (Chaparro CM et al: 

Also of note: Fast cord clamping affects lead status in high-risk newborns