Distribution, bioaccumulation and trophic transfer of chlorinated polyfluoroalkyl ether sulfonic acids in the marine food web of Bohai, China

被引：56
作者：
Chen, Hong [1 ,2 ]
Han, Jianbo [1 ]
Cheng, Jiayi [1 ]
Sun, Ruijun [1 ]
Wang, Xiaomeng [1 ]
Han, Gengchen [1 ]
Yang, Wenchao [1 ]
He, Xin [2 ]
机构：
[1] Natl Marine Environm Monitoring Ctr, Dept Marine Chem, State Ocean Adm, Key Lab Coastal Ecol & Environm, Linghe St 42, Dalian 116023, Peoples R China
[2] Dalian Univ Technol, Sch Environm & Biol Sci & Technol, Minist Educ, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China
来源：
ENVIRONMENTAL POLLUTION | 2018年 / 241卷
基金：
中国国家自然科学基金;
关键词：
Fluorinated alternatives; Levels; Seasonal variation; Emission; The Bohai sea of China; POLYBROMINATED DIPHENYL ETHERS; PERFLUOROALKYL CONTAMINANTS; PERFLUOROOCTANE SULFONATE; FLUORINATED ALTERNATIVES; PERFLUORINATED COMPOUNDS; TISSUE DISTRIBUTION; SUBSTANCES PFASS; LIAODONG BAY; IDENTIFICATION; EMISSION;
D O I：
10.1016/j.envpol.2018.05.087
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Chlorinated polyfluoroalkyl ether sulfonic acids (Cl-PFESAs) caused great concerns recently as novel fluorinated alternatives. However, information on their bioconcentration, bioaccumulation and bio-magnification in marine ecosystems is limited. In this study, 152 biological samples including invertebrates, fishes, seabirds and mammals collected from Bohai Sea of China were analyzed to investigate the residual level, spatial distribution, bioaccumulation and biomagnification of Cl-PFESAs. 6:2 Cl-PFESA was found in concentrations ranging from <MDL (method detection limit) to 3.84 ng/g ww and it is the dominant congener when compared with concentrations of 8:2 Cl-PFESA. Compared with other bays and regions, levels of 6:2 Cl-PFESA are relatively high in bivalves and fishes from Liaodong Bay. These levels were also found to tend to increase as compared with those in 2010-2014. Logarithm bioaccumulation factors (BAFs) for 6:2 Cl-PFESA ranged from 2.23 to 4.21, implying the bioaccumulation of this compound. The trophic magnification factor (BMF) for 6:2 Cl-PFESA was determined to be 3.37 in the marine food web, indicating biomagnification potential along the marine food chain. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：504 / 510
页数：7
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