title: Hexabromocyclododecane and tetrabromobisphenol A in sediments and paddy soils from Liaohe River Basin, China: Levels, distribution and mass inventory.
abstract: Hexabromocyclododecane (HBCD) and tetrabromobisphenol A (TBBPA) are two kinds of brominated flame retardants and widely present in the environment and biota. The levels, spatial distributions and mass inventories of HBCD and TBBPA were investigated in sediments and paddy soils from the Liaohe River Basin in northeast China. The concentrations of ΣHBCD and TBBPA were in the range of not detected (nd) to 4.02ng/g dry weight (dw) and 0.03 to 4.06ng/g dw, respectively. γ-HBCD was dominated in sediments, while the abundance of α-HBCD was relatively high in paddy soils. The spatial distributions of HBCD and TBBPA in surface sediments and paddy soils indicated that the local point-input was their major source. The significant correlation between total organic carbon (TOC) contents and the HBCD levels suggested that TOC content also exerted an influence on the distribution of HBCD in sediments. Meanwhile, it was found that the irrigation with river water was not the major transportation pathway of HBCD and TBBPA in paddy soils. Based on the study, it was estimated that there were about 1.67tons HBCD and 2.20tons TBBPA deposited into sediments of the Liaohe River system every year. The total mass inventories of HBCD and TBBPA in sediments were far higher than that in paddy soils.
authors.affiliation: Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: lfwave@163.com.
authors.forename: Fang
authors.initials: F
authors.lastname: Li
authors.affiliation: Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian 116023, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Jin
authors.affiliation: Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Dongqin
authors.initials: D
authors.lastname: Tan
authors.affiliation: Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian 116023, China.
authors.forename: Longxing
authors.initials: L
authors.lastname: Wang
authors.affiliation: Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian 116023, China.
authors.forename: Ningbo
authors.initials: N
authors.lastname: Geng
authors.affiliation: Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Rong
authors.initials: R
authors.lastname: Cao
authors.affiliation: Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian 116023, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Gao
authors.affiliation: Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457 Zhongshan Road, Dalian 116023, China. Electronic address: chenjp@dicp.ac.cn.
authors.forename: Jiping
authors.initials: J
authors.lastname: Chen
mesh_terms: D000383:Agriculture; D002681:China; D017753:Ecosystem; D004784:Environmental Monitoring; D005411:Flame Retardants / Q000032:analysis; D019015:Geologic Sediments / Q000737:chemistry; D006842:Hydrocarbons, Brominated / Q000032:analysis*; D012275:Oryza; D011075:Polybrominated Biphenyls / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D005411:Flame Retardants; D006842:Hydrocarbons, Brominated; D011075:Polybrominated Biphenyls; D012987:Soil; D014874:Water Pollutants, Chemical; C089796:hexabromocyclododecane; C020806:tetrabromobisphenol A
keywords: Distribution; Hexabromocyclododecane; Level; Liaohe River Basin; Mass inventory; Tetrabromobisphenol A