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Levels and Profiles of Polybrominated Diphenyl Ethers in Breast Milk During Different Nursing Durations

Yang, Lixin, Lu, Yang, Wang, Liying, Chang, Fengqi, Zhang, Jianbo, Liu, Yinping
Bulletin of environmental contamination and toxicology 2016 v.97 no.4 pp. 510-516
body mass index, breast milk, colostrum, food intake, gas chromatography, infants, lipids, mass spectrometry, milk, mothers, polybrominated diphenyl ethers
Eight PBDE congeners, BDE-28, 47, 99, 100, 153, 154, 183 and 209, were measured using gas chromatography coupled to mass spectrometry. The concentrations of Σ₈PBDEs ranged from 0.04 to 19.93 ng g⁻¹ lipid weight (lw), with median and mean value of 1.21 and 2.72 ng g⁻¹ lw. PBDE congeners were detected in approximately 90 % of samples with BDE-209 as the dominant one. No significant correlations were found between the mothers’ age, body mass index and PBDEs concentrations. We estimated the infant’s dietary intake of the studied PBDEs via human milk during different nursing durations, and found that babies younger than 1 month might take a relatively higher body burden of PBDEs. The median levels of Σ₈PBDEs were 0.74, 2.80, 2.43 and 0.90 ng g⁻¹ lw in colostrum, milk sampled at 1, 3 and 6 months after birth, respectively. High consumption of animal-origin food after birth may lead to the elevated ΣPBDEs concentrations in breast milk. A rational nutrition deployment is essential for postpartum mother.