Tetrabromobisphenol A and hexabromocyclododecane in sediments from the Pearl River Estuary and South China Sea

Chuyue Long; Weiyan Yang; Jiaxun Lu; Yuanyue Cheng; Ning Qiu; Sen Du; Li Zhang; Shejun Chen; Yuxin Sun

doi:10.1007/s13131-023-2267-6

doi: 10.1007/s13131-023-2267-6

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出版历程
- 收稿日期: 2023-04-18
- 录用日期: 2023-09-11
- 网络出版日期: 2023-10-19

Tetrabromobisphenol A and hexabromocyclododecane in sediments from the Pearl River Estuary and South China Sea

Chuyue Long^{1, 2, 4},
Weiyan Yang³,
Jiaxun Lu^{2, 4},
Yuanyue Cheng²,
Ning Qiu^{2, 5},
Sen Du²,
Li Zhang²,
Shejun Chen¹,
Yuxin Sun^{1
, ,}

1.
Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, School of Environment, South China Normal University, Guangzhou 510006, China
2.
South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
3.
Research Center of Harmful Algae and Marine Biology, Jinan University, Guangzhou 510632, China
4.
University of Chinese Academy of Sciences, Beijing 100049, China
5.
Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China

Funds: The Guangdong Basic and Applied Basic Research Foundation under contract Nos 2021B1515020040 and 2021A1515011526; the National Natural Science Foundation of China under contract Nos 42277246 and U224422; and Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) under contract No 2019BT02H594.

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Corresponding author: E-mail: sunyuxin@m.scnu.edu.cn

摘要

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Abstract: Marine sediments were collected from the Pearl River Estuary (PRE) and South China Sea (SCS) to study the occurrence and spatial distribution of tetrabromobisphenol A (TBBPA) and hexabromocyclododecane (HBCDD). The levels of TBBPA and HBCDD in sediments ranged from not detected (nd) to 6.14 ng/g dry weight (dw) and nd to 0.42 ng/g dw. TBBPA concentrations in marine sediments were substantially higher than HBCDD. The concentrations of TBBPA and HBCDD in the PRE sediments were significantly greater than those in the SCS. α-HBCDD (48.7%) and γ-HBCDD (46.2%) were the two main diastereoisomers of HBCDD in sediments from the PRE, with minor contribution of β-HBCDD (5.1%). HBCDD were only found in one sample from the northern SCS. The enantiomeric fraction of α-HBCDD in sediments from the PRE was obviously greater than 0.5, indicating an accumulation of (+)-α-HBCDD. The enantiomers of HBCDD were not measured in sediments from the SCS. This work highlighted the environmental behaviors of TBBPA and HBCDD in marine sediments.
- Tetrabromobisphenol A /
- Hexabromocyclododecane /
- Distribution /
- Marine sediments /
- Pearl River Estuary /
- South China Sea

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Figure 1. TBBPA concentrations in sediments from the PRE and SCS.

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Figure 2. HBCDD concentrations in sediments from the PRE and SCS.

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Figure 3. Diastereoisomer compositions of HBCDD in sediments from the PRE and SCS

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Figure 4. Enantiomer fractions of HBCDD in sediments from the PRE

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文章访问数: 134
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doi: 10.1007/s13131-023-2267-6

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Tetrabromobisphenol A and hexabromocyclododecane in sediments from the Pearl River Estuary and South China Sea

Corresponding author: E-mail: sunyuxin@m.scnu.edu.cn

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