Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) in paired maternal and neonatal samples from South China: Placental transfer and potential risks

Zhuo-Jia CHEN, Han-Yan LIU, Ka-Lok HO, Hong-Bin HUANG, Qing LIU, Yu Bon MAN, Michael Hon Wah LAM, Jun DU, Ming Hung WONG, Hong Sheng WANG

Research output: Contribution to journalArticles

10 Citations (Scopus)

Abstract

Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) are attracting more and more attention for the neurodevelopment toxicity effects. We evaluated the concentrations of 15 individual OH-PBDEs and 3 bromophenol (BRP) congeners in 30 mother-newborn paired placenta, breast milk, fetal cord blood, and neonatal urine samples collected from South China. The geometric mean (GM) concentrations of ∑OH-PBDEs were 37.6, 61.3, and 76.8 pg g⁻¹ ww in placenta, breast milk, and cord blood, respectively. The GM concentrations of ∑BRPs were 47.6, 119, and 30.2 pg g⁻¹ ww in placenta, breast milk, and cord blood, respectively. The GM concentrations of ∑OH-PBDEs and ∑BRPs in neonatal urine were 72.0 and 79.8 pg ml⁻¹, respectively. Of the 15 OH-PBDE congeners analyzed, the three most frequently detected congeners were 2′-OH-BDE-68 (72.1%), 6-OH-BDE-47 (67.6%), and 2′-OH-BDE-28 (65.8%). The estimated daily intake (EDI) of OH-PBDEs for the breast-fed infants was 9.31±4.00 ng kg⁻¹ bw day. The accumulation of OH-PBDEs in newborns was much lower than the estimated lowest observed-effect concentration (LOEC) of neurotoxicity. The present study provided the first systematic fundamental data that exposure to OH-PBDEs for newborn and their mothers in South China. Copyright © 2016 Elsevier Inc.
Original languageEnglish
Pages (from-to)72-78
JournalEnvironmental Research
Volume148
Early online dateMar 2016
DOIs
Publication statusPublished - Jul 2016

Citation

Chen, Z.-J., Liu, H.-Y., Ho, K.-L., Huang, H.-B., Liu, Q., Man, Y.-B., et al. (2016). Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) in paired maternal and neonatal samples from South China: Placental transfer and potential risks. Environmental Research, 148, 72-78.

Keywords

  • OH-PBDEs
  • Human tissues
  • Paired samples
  • Body accumulation
  • Newborns

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