Sediment records of polybrominated diphenyl ethers (PBDEs) in Yangtze River Delta of Yangtze River in China

Chunnian Da; Ruwei Wang; Linlin Xia; Qing Huang; Jiawei Cai; Feixuan Cai; Chongjing Gao

doi:10.1016/j.marpolbul.2020.111714

Sediment records of polybrominated diphenyl ethers (PBDEs) in Yangtze River Delta of Yangtze River in China

Mar Pollut Bull. 2020 Nov:160:111714. doi: 10.1016/j.marpolbul.2020.111714. Epub 2020 Oct 6.

Authors

Chunnian Da¹, Ruwei Wang², Linlin Xia³, Qing Huang³, Jiawei Cai³, Feixuan Cai³, Chongjing Gao³

Affiliations

¹ Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China; School of Biology, Food and Environment, Hefei University, Hefei 230022, China; Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
² Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China; Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China. Electronic address: wangruwei@jnu.edu.cn.
³ Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China.

PMID: 33181970
DOI: 10.1016/j.marpolbul.2020.111714

Abstract

The spatial and temporal distributions of polybrominated diphenyl ethers (PBDEs) were investigated in five sediment cores from the Yangtze River Delta of Yangtze River in China. The surficial concentrations of nine tri- through hepta-BDE congeners (Σ₉BDEs) and BDE209 were highest at urban sites S3 and S2, followed by rural site S1 and estuary sites S5 and S4, respectively, based on dry sediment weight. Both BDE209 and ∑₉BDE concentrations exponentially increased between 1990 and 2008. Commercial deca-BDE, penta-BDE, and octa-BDE products were likely PBDE sources in the study area. The relative abundances of BDE209 were higher in sediment cores from estuary than those from urban and rural locations, ascribing to the atmospheric transport from the adjacent densely populated northern and eastern coastal regions. This conclusion was further confirmed by the higher ratios of BDE47/BDE99 and BDE100/BDE99 in cores from the estuary than those from other locations.

Keywords: Atmospheric transport; PBDE source; Polybrominated diphenyl ethers (PBDEs); Sediment records; Yangtze River Delta.

MeSH terms

China
Environmental Monitoring
Geologic Sediments
Halogenated Diphenyl Ethers / analysis
Rivers*
Water Pollutants, Chemical* / analysis

Substances

Halogenated Diphenyl Ethers
Water Pollutants, Chemical