title: [Polybrominated dipenyl ethers (PBDEs) in breast milk samples from Beijng in 2007].
abstract: OBJECTIVE
  To evaluate the burden of polybrominated diphenyl ethers (PBDEs) in general people and the exposure of infants via breast feeding in Beijing, the levels of PBDEs in human milk samples from Beijing were investigated.
  
  
  METHODS
  Seven congeners of PBDE, including BDE28, BDE47, BDE99, BDE100, BDE153, BDE154 and BDE183 in pooled breast milk samples and 40 individual breast milk samples, were measured with HRGC-HRMS.
  
  
  RESULTS
  Seven selected congeners of PBDEs were all detected in samples. The mean and median concentration was 1.48 ng/g and 1.51 ng/g respectively. BDE47, BDE153 and BDE28 were the predominant congeners, accounted for 80% of total PBDEs. PBDEs in breast milk from urban areas were higher than that from rural areas.
  
  
  CONCLUSIONS
  PBDEs in breast milk samples from Beijing were much lower than that from other areas. Further monitoring will be important to determine the variation of PBDE levels and elucidate the contamination status.
authors.affiliation: College of Veterinary Medicin, China Agricultural University, Beijing 100193, China. zhaoyf703@126.com
authors.forename: Yunfeng
authors.initials: Y
authors.lastname: Zhao
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Jingguang
authors.initials: J
authors.lastname: Li
authors.forename: Yongning
authors.initials: Y
authors.lastname: Wu
authors.forename: Jianzhong
authors.initials: J
authors.lastname: Shen
mesh_terms: D000328:Adult; D002681:China; D004781:Environmental Exposure / Q000032:analysis; D004785:Environmental Pollutants / Q000032:analysis*; D005260:Female; D006801:Humans; D008895:Milk, Human / Q000737:chemistry*; D011075:Polybrominated Biphenyls / Q000032:analysis*; D055815:Young Adult
chemical_list: D004785:Environmental Pollutants; D011075:Polybrominated Biphenyls