Brominated flame retardants in mangrove sediments of the Pearl River Estuary, South China: Spatial distribution, temporal trend and mass inventory

被引：74

作者：

Zhang, Zai-Wang ^{[1
,5
]}

Sun, Yu-Xin ^{[1
]}

Sun, Kai-Feng ^{[1
]}

Xu, Xiang-Rong ^{[1
]}

Yu, Shen ^{[2
]}

Zheng, Tian-Ling ^{[3
]}

Luo, Xiao-Jun ^{[4
]}

Tian, Yun ^{[3
]}

Hu, Yong-Xia ^{[1
]}

Diao, Zeng-Hui ^{[1
]}

Mai, Bi-Xian ^{[4
]}

机构：

[1] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangdong Prov Key Lab Appl Marine Biol, Guangzhou 510301, Guangdong, Peoples R China

[2] Chinese Acad Sci, Key Lab Urban Environm & Hlth, Inst Urban Environm, Xiamen 361021, Peoples R China

[3] Xiamen Univ, Sch Life Sci, Key Lab Minist Educ Coastal & Wetland Ecosyst, Xiamen 361005, Peoples R China

[4] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China

[5] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

CHEMOSPHERE | 2015年 / 123卷

关键词：

Brominated flame retardants; Distribution; Sediment; Mangrove; The Pearl River Estuary; POLYBROMINATED DIPHENYL ETHERS; GREAT-LAKES; POLYCHLORINATED-BIPHENYLS; ORGANIC CONTAMINANTS; CORES; DELTA; ECOSYSTEMS; PBDES; BAY; DECABROMODIPHENYLETHANE;

D O I：

10.1016/j.chemosphere.2014.11.042

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sediments were collected from three mangrove wetlands in the Pearl River Estuary (PRE) of South China to investigate spatial and temporal distributions of polybrominated diphenyl ethers (PBDEs), decabromodiphenyl ethane (DBDPE) and 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE). Concentrations of Sigma PBDEs, DBDPE and BTBPE in mangrove sediments of the PRE ranged from 1.25-206, 0.364-34.9, and not detected-0.794 ng g(-1) dry weight, respectively. The highest concentrations of Sigma PBDEs, DBDPE and BTBPE were found at the mangrove wetland from Shenzhen, followed by Zhuhai and Guangzhou, showing the dependence on the proximity to urban areas. PBDEs were the predominant brominated flame retardants (BFRs) in mangrove sediments. The concentrations of Sigma PBDEs, DBDPE and BTBPE in sediment cores showed an increasing trend from the bottom to top layers, reflecting the increasing usage of these BFRs. The inventories of Sigma PBDEs, DBDPE and BTBPE in mangrove sediments were 1962, 245, and 4.10 ng cm(-2), respectively. This is the first study to report the occurrence of DBDPE and BTBPE in mangrove ecosystems. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：26 / 32

页数：7

共 33 条

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