期刊
CHEMOSPHERE
卷 302, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2022.134872
关键词
Tetrabromobisphenol A; Hexabromocyclododecanes; Sediment; Fishing ports; Ecological risk assessment
资金
- National Natural Science Foundation of China [41876129]
- Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering, Guangdong Laboratory (Guangzhou) [GML2019ZD0404]
- National Science & Technology Fundamental Resources Investigation Program of China [2018FY100104]
- Guangdong Provincial Key Laboratory of Fishery Ecology and Environment [FEEL-2020-4]
- Central Public-interest Scientific Institution Basal Research Fund, South China Sea Fisheries Research Institute, CAFS [2019TS14, 2021SD17]
- Science and Technology Program of Guangzhou, China [201904010391]
- Science and Technology Planning Project of Guangdong Province [2019B121201001]
This study investigated the pollution status of TBBPA and HBCDDs in sediments from fishing ports along the coast of South China. The concentrations of TBBPA and HBCDDs were strongly associated with local population density, but weakly correlated with total organic carbon content. γ-HBCDD was found to be the predominant diastereoisomer in the sediments.
Tetrabromobisphenol A (TBBPA) and hexabromocyclododecanes (HBCDDs) have attracted extensive attention due to their strong persistence and toxicity. However, little has been known about their pollution status in fishing ports, which are typical sinks of land-sourced pollutants. In this study, we investigated the occurrence, distribution and ecological risk of TBBPA and HBCDDs in sediments from fishing ports along the coast of South China. The concentrations of TBBPA and EHBCDD (sum of alpha-, 13-, and gamma-HBCDD) in the fishing-port sediments were in the ranges of 0.02-21.5 ng/g dw and 1.06-14.1 ng/g dw, respectively. gamma-HBCDD was the predominant diastereoisomer in most fishing-port sediments. The enantiomeric analysis indicated a preferential enrichment of (-)-enantiomers for alpha-, 13-, and gamma-HBCDD. The geographical location of fishing ports is a significant determinant of distribution for TBBPA and HBBCDs. The concentrations of TBBPA and HBCDDs in fishing-port sediments were strongly associated with local population density, but weakly correlated with total organic carbon content of the
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