Breast-milk mercury concentrations and amalgam surface in mothers from Brasília, Brazil
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Human milk is the best source of nourishment for the newborn because of its incomparable balanced nutrition and psychological benefits to the infant's development. Dental fillings containing metallic Hg are the primary source of inorganic Hg contamination of humans. We studied Hg concentrations in the breast milk of mothers during the first month (7–30 d) postnatal in relation to the number of amalgam surfaces. The concentration of total Hg was determined in 23 samples of human milk collected from lactating mothers with a varied number of amalgam dental restorations. The average number of amalgam surfaces was 6.87 (5.81, SD) with a range of 0 to 20. The mean concentration of total Hg in breast milk was 5.73 ng/g (range: 0–23.07). The Pearson corrlation coefficient was significant (r=0.6087, p=0.0057) between breast-milk Hg and number of amalgam surfaces. In 56.5% of low-fish-eating mothers, the amount of Hg likely to be ingested by breastfed infants is above the World Health Organization reference.
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- Breast-milk mercury concentrations and amalgam surface in mothers from Brasília, Brazil
Biological Trace Element Research
Volume 106, Issue 2 , pp 145-151
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- Humana Press
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- human milk
- dental filling
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- Author Affiliations
- 1. Faculdade de Ciências da Saúde, Universidade de Brasília, Brasília, Brazil
- 2. Laboratório de Radioisótopos Eduardo Penna Franca, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil