title: Polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) in breast milk from Zhejiang, China.
abstract: Breast milk samples (n=74) from the general maternal population of Zhejiang province were analyzed for polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs). Samples were divided into urban and rural groups. Mean ∑PCDD/F, ∑PCB and ∑PBDE concentrations were 71.4±40.8, 42774±27841 and 2679±944 pg g(-1) lipid in the urban group and 38.6±38.1, 26546±11375 and 2731±1093 pg g(-1) lipid in the rural group, respectively. WHO-TEQ concentrations for dioxin-like PCBs and PCDD/Fs were 2.66±1.43 and 3.90±2.60 pg g(-1) lipid in the urban group and 1.83±0.93 and 2.27±1.55 pg g(-1) lipid in the rural group, respectively. Congener profiles for these pollutants were compared between human samples (adipose tissue and breast milk) and foodstuffs (seafood, hen eggs, and freshwater fish). Similar PCB and PCDD/F congener patterns were observed, suggesting that dietary intake is a significant source for human exposure to PCBs and PCDD/Fs. However, much lower PBDE congener levels were detected in breast milk than in foodstuffs, which implies that pathways other than dietary intake may also account for human exposure to PBDEs.
authors.affiliation: Zhejiang Provincial Center for Disease Control and Prevention (ZJCDC), 630 Xin-Cheng Road, Binjiang District, Hangzhou 310051, China.
authors.forename: Haitao
authors.initials: H
authors.lastname: Shen
authors.forename: Gangqiang
authors.initials: G
authors.lastname: Ding
authors.forename: Yongning
authors.initials: Y
authors.lastname: Wu
authors.forename: Guoshao
authors.initials: G
authors.lastname: Pan
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Zhou
authors.forename: Jianlong
authors.initials: J
authors.lastname: Han
authors.forename: Jingguang
authors.initials: J
authors.lastname: Li
authors.forename: Sheng
authors.initials: S
authors.lastname: Wen
mesh_terms: D000328:Adult; D001572:Benzofurans / Q000032:analysis / Q000378:metabolism*; D002681:China; D000072338:Dibenzofurans, Polychlorinated; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis / Q000378:metabolism*; D005260:Female; D005504:Food Analysis; D055768:Halogenated Diphenyl Ethers / Q000032:analysis / Q000378:metabolism*; D006801:Humans; D018811:Maternal Exposure / Q000706:statistics & numerical data*; D008895:Milk, Human / Q000737:chemistry / Q000378:metabolism*; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000378:metabolism*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis / Q000378:metabolism; D017747:Seafood / Q000032:analysis / Q000706:statistics & numerical data; D055815:Young Adult
chemical_list: D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D004785:Environmental Pollutants; D055768:Halogenated Diphenyl Ethers; D000072317:Polychlorinated Dibenzodioxins; D011078:Polychlorinated Biphenyls