title: Levels and distribution of tris-(2,3-dibromopropyl) isocyanurate and hexabromocyclododecanes in surface sediments from the Yellow River Delta wetland of China.
abstract: The levels and distribution of tris-(2,3-dibromopropyl) isocyanurate (TBC) and hexabromocyclododecanes (HBCDs) of surface sediments in the Yellow River Delta wetland had been investigated. The concentrations of TBC and ∑HBCDs ranged from 0.20 to 29.03ng·g-1dw and below limits of detections (LODs) to 20.25ng·g-1dw. The average composition profile of three HBCDs isomers were 10.1%, 6.1% and 83.8% for α-, β- and γ-HBCD, respectively. Moreover, correlation analysis indicated there are similar sources among three isomers and positive correlations between total organic carbon (TOC) content and concentrations of TBC and HBCDs. The mass inventory of TBC,α-, β-, γ-HBCD, ΣHBCDs in surface sediments of Yellow River Delta wetland were estimated about 725.50, 72.76, 44.29, 548.34, 665.39kg. Therefore, further investigations on potential human health and environmental risk assessments of TBC and HBCDs were needed.
authors.affiliation: Environmental Science and Engineering, Qingdao University, Qingdao 266071, China. Electronic address: qddxhjkx520@163.com.
authors.forename: Ling
authors.initials: L
authors.lastname: Wang
authors.affiliation: Environmental Science and Engineering, Qingdao University, Qingdao 266071, China.
authors.forename: Mengyuan
authors.initials: M
authors.lastname: Zhang
authors.affiliation: Environmental Science and Engineering, Qingdao University, Qingdao 266071, China.
authors.forename: Yinghua
authors.initials: Y
authors.lastname: Lou
authors.affiliation: National Food Quality Supervision and Inspection Center, Beijing 100015, China.
authors.forename: Runhui
authors.initials: R
authors.lastname: Ke
authors.affiliation: Research Center for Marine Ecology, The First Institute of Oceanography, State Oceanic Administration of China, Qingdao 266061, China.
authors.forename: Minggang
authors.initials: M
authors.lastname: Zheng
mesh_terms: D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D005411:Flame Retardants / Q000032:analysis; D019015:Geologic Sediments / Q000737:chemistry*; D006842:Hydrocarbons, Brominated / Q000032:analysis*; D045483:Rivers / Q000737:chemistry*; D014227:Triazines / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D053833:Wetlands
chemical_list: D005411:Flame Retardants; D006842:Hydrocarbons, Brominated; D014227:Triazines; D014874:Water Pollutants, Chemical; C541743:tris(2,3-dibromopropyl)isocyanurate; C089796:hexabromocyclododecane
keywords: Hexabromocyclododecanes (HBCDs); Inventory estimation; Surface sediments; Total organic carbon (TOC); Tris-(2,3-dibromopropyl) isocyanurate (TBC); Yellow River Delta wetland