title: Maternal transfer of dechloranes and their distribution among tissues in contaminated ducks.
abstract: The tissue concentrations of dechlorane plus and its analogues were determined in ducks collected from several e-waste recycling villages of Taizhou, China. Compared with the published literature, the relatively high concentrations of these compounds were detected in ducks, indicating serious DP contamination. Since both the duck meat and eggs were important components for diet, this result reminded us of keeping a watchful eye on human dietary exposure to DP and its analogues in this study area. The wet-weight concentrations of DP and its analogues were significantly related to tissue lipid content (p < 0.05), indicating that the lipid pools predominantly impacted the distribution of DPs in ducks. On the basis of lipid adjustment, the significantly lower levels in brain than those in liver and blood, displayed the occurrence of liver sequestration and blood-brain barrier to DP and its analogues in the duck (p < 0.05). The maternal transfer of DP and Mirex was not obviously limited, and the transferring extent of Dec 602 was over one. The stereo-selected accumulation of two DP isomers occurred among tissues with preference to syn-DP in blood, and to anti-DP in brain. The values of lipid-adjusted monodechlorinated products mainly originated from the exterior environment in ducks.
authors.affiliation: Hubei University of Technology, Wuhan 430068, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center of Eco-Environmental Sciences, Chinese Academy of Sciences, PO Box 2871, 18 Shuangqing Road, Haidian District, Beijing 100085, China.
authors.forename: Ping-Fan
authors.initials: PF
authors.lastname: Wu
authors.affiliation: Hubei University of Technology, Wuhan 430068, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center of Eco-Environmental Sciences, Chinese Academy of Sciences, PO Box 2871, 18 Shuangqing Road, Haidian District, Beijing 100085, China.
authors.forename: Lian-Lian
authors.initials: LL
authors.lastname: Yu
authors.affiliation: Hubei University of Technology, Wuhan 430068, China.
authors.forename: Long
authors.initials: L
authors.lastname: Li
authors.affiliation: Hubei University of Technology, Wuhan 430068, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center of Eco-Environmental Sciences, Chinese Academy of Sciences, PO Box 2871, 18 Shuangqing Road, Haidian District, Beijing 100085, China. Electronic address: lxhzpb@rcees.ac.cn.
authors.forename: Xing-Hong
authors.initials: XH
authors.lastname: Li
mesh_terms: D000818:Animals; D002681:China; D004372:Ducks; D004531:Eggs / Q000032:analysis; D059029:Electronic Waste; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis* / Q000097:blood; D005260:Female; D006843:Hydrocarbons, Chlorinated / Q000032:analysis* / Q000097:blood; D008099:Liver / Q000737:chemistry; D018811:Maternal Exposure; D011083:Polycyclic Compounds / Q000032:analysis* / Q000097:blood; D059027:Recycling
chemical_list: D004785:Environmental Pollutants; D006843:Hydrocarbons, Chlorinated; D011083:Polycyclic Compounds; C526360:dechlorane plus
keywords: DP and DP-like compound; Duck; Maternal transfer; Tissue-specific distribution