文献类型：期刊文献

英文题名：Brominated Flame Retardants (Bfrs) in Sediment from a Typical E-Waste Dismantling Region in Southern China: Occurrence, Spatial Distribution, Composition Profiles, and Ecological Risks

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

机构：[1] State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China; [2] State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Box 563, 130 Meilong Road, Shanghai, 200237, China; [3] State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China

年份：2021

外文期刊名：SSRN

收录：EI(收录号：20210421521)

语种：英文

外文关键词：Electronic equipment - Electronic Waste - Flame retardants - Location - Organic pollutants - Sediments - Spatial distribution - Wastes

摘要：In the present study, eight congeners of polybrominated diphenyl ethers (PBDEs) and seven of novel brominated flame retardants (NBFRs) were determined in sediment from Guiyu, a typical e-waste dismantling region, to evaluate their current occurrence, composition and spatial distribution. PBDEs levels ranged from 0.345 to 401000 ng/g dw and NBFRs levels ranged from 0.581 to 73100 ng/g dw. BDE-209 and DBDPE were predominant in almost all sediment samples. The ratio of DBDPE/BDE-209 in sediments ranged from 0.0814 to 2.80 (mean: 0.879). The concentration and composition profiles for BFRs in sediments from both mainstream or tributaries of the two major rivers in Guiyu reach (and adjacent downstream locations) show significantly different from those far from Guiyu town, suggesting that historical crude e-waste dismantling activities have severely affected the local aquatic environment in Guiyu. Additionally, BFRs within water-sediment could migrate along the river mostly in limited distances, while BFRs at locations far from Guiyu town mainly resulted from the transportation through atmospheric movement to water and then depositing to sediment. Ecological risk assessment revealed that the low brominated congeners of PBDEs and BDE-209 have posed an unacceptable risk to the sedimentary life at multiple locations. ? 2021, The Authors. All rights reserved.