Occurrence and ecological risks of brominated flame retardants and dechlorane plus in sediments from the Pearl River Estuary and Daya Bay, South China

Occurrence and ecological risks of brominated flame retardants and dechlorane plus in sediments from the Pearl River Estuary and Daya Bay, South China

Considering the phasing-out of polybrominated diphenyl ethers (PBDEs), environmental concerns of PBDE alternatives and dechlorane plus (DP) are rising. Accordingly, this study investigates occurrence and ecological risks of PBDEs, PBDE alternatives and DPs in sediments of two littoral regions, the P...

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Veröffentlicht in:Marine pollution bulletin 2022-12, Vol.185, p.114182, Article 114182
Hauptverfasser: Hu, Yongxia, Li, Zongrui, Xiong, Jingjing, Zhang, Zaiwang, Yuan, Jiaxin, Tang, Yi, Jin, Tao, Li, Huawei, Wu, Shengjun
Format: Artikel
Sprache:eng
Schlagworte:
biphenyl
Brominated flame retardants
bromination
China
decabromodiphenyl ethane
decabromodiphenyl ether
Dechlorane plus
Ecological risks
estuaries
littoral zone
marine pollution
risk
rivers
Sediment
sediments
Spatio-temporal trend
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Zusammenfassung:Considering the phasing-out of polybrominated diphenyl ethers (PBDEs), environmental concerns of PBDE alternatives and dechlorane plus (DP) are rising. Accordingly, this study investigates occurrence and ecological risks of PBDEs, PBDE alternatives and DPs in sediments of two littoral regions, the Pearl River Estuary (PRE) and Daya Bay (DYB), in southern China. Total PBDEs concentrations in surface sediments of the PRE and DYB were in the range (mean) of 0.30–28.7 (8.71) and 0.29–43.4 (6.05) ng/g dw, respectively. DP levels in surface sediments of the PRE (0.004–0.27 ng/g dw) were significantly higher than those in the DYB (0.005–0.24 ng/g dw) (p 
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2022.114182