文献类型：期刊文献

英文题名：Characteristics of legacy and novel brominated flame retardants in water and sediment surrounding two e-waste dismantling regions in Taizhou, eastern China

作者：Ling, Siyuan[1];Lu, Cong[1];Peng, Cheng[1,2];Zhang, Wei[1,2];Lin, Kuangfei[1];Zhou, Bingsheng[3]

机构：[1]East China Univ Sci & Technol, Sch Resource & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[3]Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China

年份：2021

卷号：794

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20212710596808);WOS:【SCI-EXPANDED(收录号:WOS:000691672300004)】；

基金：This research was supported by the National Natural Science Foundation of China (21737005, 41877124).

语种：英文

外文关键词：Brominated flame retardants; E-waste dismantling site; Freshwater environment; Spatial distribution; Ecological risk assessment

摘要：A total of 51 water and 43 sediment samples were collected from the locations surrounding the two e-waste dismantling zones in Taizhou, the Fengjiang resource recycling industrial zone (FJ, shut down in 2017) and the Taizhou resource recycling base (TZ, newly constructed in recent years). The concentrations of polybrominated diphenyl ethers (PBDEs) ranged from 1.7 to 44 ng/L in water and from not detected (nd) to 7100 ng/g in sediment. Novel brominated flame retardants (NBFRs) ranged from 0.29 to 1.6 ng/L in water, and from nd to 5300 ng/g in sediment. The levels of PBDEs and NBFRs in the water were comparable between FJ and TZ, while their concentrations were higher in the sediment from FJ than those from TZ. The levels of BDE-28, BDE-153, pentabromotoluene (PBT), pentabromobenzene (PBB), n-ary sumation PBDEs and n-ary sumation BFRs in the water from FJ or TZ were found to be significantly negatively associated with the distance from the zone center. However, in the sediments from FJ and TZ, the BFRs levels did not decrease from the center to the outer regions. BDE-209 and decabromodiphenyl ethane (DBDPE) were predominant in the sediments and the ratio of DBDPE/BDE-209 were as high as 5.6 (mean: 0.97). The mass burden of PBDEs, BDE-209, DBDPE, 1,2-bis(2,4,6-tribromophenoxy) ethane (BTBPE), and HBB in the riverine sediments in Luqiao District was 829, 787, 363, 85, and 61 kg, respectively. The ecological risk assessment revealed that BDE-99 posed an unacceptable risk to aquatic life at 86% of the locations. The hazard quotients for penta-BDE, BDE-209, and HBB exceeded one for 30%, 28%, and 2.3% of the sediment samples, respectively. (c) 2021 Elsevier B.V. All rights reserved.