title: [Pollution Characteristics and Ecological Risk of PBDEs in Water and Sediment from an Electronic Waste Dismantling Area in Taizhou].
abstract: An e-waste dismantling industrial park of Taizhou was selected as the sampling center, within a radius of 16 km, and a total of 30 sampling sites were designed in three circles as follows: C (3 km), S (5-10 km) and R (10-16 km). Pollution characteristics and ecological risk of polybrominated diphenyl ethers (PBDEs) in water and sediments were investigated. The concentrations of PBDEs in water ranged from 9.4 to 57.2 ng · L⁻¹, with a mean value of 25.9 ng · L⁻¹; and 3.7 to 38,775 ng · g⁻¹, with an average of 2 779 ng · g⁻¹ in sediments. BDE-209 was the predominant congener. The spatial distribution patterns of PBDE levels in water and sediment were both in the following order: C > S > R. Furthermore, the concentrations of PBDEs in sediments showed significant negative correlation against the distance from the industrial park (P < 0.01). Compared with other regions around the world, the PBDEs contamination was more serious in the area, which indicated that e-waste dismantling activity was one of the significant sources for PBDEs pollution. It was estimated that a total of 30. 7 t PBDEs (including 28. 9 t BDE- 209) was discharged into surrounding environment as a result of dismantling industrial activities in last 40 years. A preliminary ecological risk assessment for PBDEs in water and sediments was conducted by hazard quotient method. The results demonstrated that the Penta-BDEs in the center of e-waste dismantling area ( a radius of 1.5 km) was at particularly high risk level and could cause serious influence on the ecological safety and human health.
authors: Xiang-ping
authors: XP
authors: Chen
authors: Bao-qi
authors: BQ
authors: Peng
authors: Su-ping
authors: SP
authors: Lü
authors: Qiang
authors: Q
authors: Chen
authors: Yong
authors: Y
authors: Zhang
authors: Chang-jiang
authors: CJ
authors: Huang
authors: Qiao-xiang
authors: QX
authors: Dong
mesh_terms: D002681:China; D004463:Ecology; D059029:Electronic Waste; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D006801:Humans; D007220:Industrial Waste; D018570:Risk Assessment; D014867:Water / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D055768:Halogenated Diphenyl Ethers; D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D014867:Water; C010902:decabromobiphenyl ether