Polybrominated diphenyl ethers and decabromodiphenylethane in sediments from twelve lakes in China

被引：37
|
作者：
Wu, Fengchang [1 ]
Guo, Jianyang [2 ]
Chang, Hong [1 ]
Liao, Haiqing [1 ]
Zhao, Xiaoli [1 ]
Mai, Bixian [3 ]
Xing, Baoshan [4 ]
机构：
[1] Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
[2] Chinese Acad Sci, State Key Lab Environm Geochem, Inst Geochem, Guiyang 550002, Peoples R China
[3] Chinese Acad Sci, State Key Lab Organ Geochem, Inst Guangzhou Geochem, Guangzhou, Guangdong, Peoples R China
[4] Univ Massachusetts, Dept Plant Soil & Insect Sci, Amherst, MA 01003 USA
来源：
ENVIRONMENTAL POLLUTION | 2012年 / 162卷
基金：
中国国家自然科学基金;
关键词：
Polybrominated diphenyl ethers; Decabromodiphenylethane; Sediments; Lakes; BROMINATED FLAME RETARDANTS; GREAT-LAKES; VERTICAL DISTRIBUTIONS; LACUSTRINE SEDIMENTS; SPATIAL-DISTRIBUTION; CINCA RIVER; PROFILE; BIOTA; HEXABROMOCYCLODODECANE; MICHIGAN;
D O I：
10.1016/j.envpol.2011.11.014
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Sediment cores from 12 Chinese lakes were analyzed to investigate the historical inputs of poly-brominated diphenyl ethers (PBDEs) and decabromodiphenylethane (DBDPE) during the past few decades. Concentrations of Sigma PBDE1 (sum of tri- to hepta-BDEs), Sigma PBDE2 (sum of nona- to deca-BDEs) and DBDPE in the surface sediments were 0.02-0.29 ng g(-1), 0.46-46.6 ng g(-1) and 1.02-3.64 ng respectively. The temporal trends of PBDEs and DBDPE followed a general increase from the bottom to the surface. The calculated fluxes for Sigma PBDE1, Sigma PBDE2 and DBDPE were 0.001-0.09, 0.03-4.24, and 0.05-0.31 ng cm(-2) yr(-1), and the inventories were 0.09-7.86, 0.91-461, and 3.83-24.6 ng cm-2, respectively. The urbanization and industrialization are highly related to the contamination of PBDEs and DBDPE in sediments. The DBDPE input in recent years was still lower than Sigma PBDE2 but the temporal trends indicated that the contamination would increase with the increasing usage of DBDPE in the future. (C) 2011 Elsevier Ltd. All rights reserved.
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收藏
页码：262 / 268
页数：7
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