Polybrominated diphenyl ethers (PBDEs) and other flame retardants in the atmosphere and water from Taihu Lake, East China.
Polybrominated diphenyl ethers (PBDEs) and other flame retardants in the atmosphere and water from Taihu Lake, East China.
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DOI：
10.1016/j.chemosphere.2010.06.013
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发表时间：
2010-08
期刊：
影响因子：
8.8
通讯作者：
Xinghua Qiu;T. Zhu;Jianxin Hu
中科院分区：
文献类型：
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作者：
Xinghua Qiu;T. Zhu;Jianxin Hu
2004年，在中国东部的太湖采集了空气和水样，分析了33种同系物的多溴联苯醚（PBDE）和其他7种溴化和氯化阻燃剂。年大气总多溴二苯醚浓度为220pgm−3；BDE-209含量最高（平均占总多溴二苯醚的41%），其次是BDE-47（17%）和BDE-28（15%）。四溴二苯醚和三溴二苯醚同系物（包括BDE-47、-28、-49、-66和-17）的相对丰度，而不是BDE-99，表明该地区可能生产和/或消费特定的五溴二苯醚制剂。空气-水-气体交换分析证实了这一来源，春、夏季基本处于平衡状态，秋、冬季挥发通量较强，尤其是BDE-28，表明多溴二苯醚可能向湖泊排放废水。除多溴二苯醚外，空气样本中还检测到六溴苯、1,2-二（2,4,6-三溴苯氧基）乙烷、十溴二苯乙烷和二氯烷+，十溴二苯乙烷的年平均浓度为23pgm−3，其他物质的年平均浓度<4pgm−3。
Air and water samples were collected from Taihu Lake, East China through 2004 and analyzed for 33 congeners of polybrominated diphenyl ether (PBDE) and other seven brominated and chlorinated flame retardants. The annual concentration of total atmospheric PBDEs was 220pgm−3; BDE-209 was most abundant (average 41% of total PBDEs), followed by BDE-47 (17%) and BDE-28 (15%). The relative abundance of tetra- and tri-BDE congeners (including BDE-47, -28, -49, -66, and -17) instead of BDE-99 indicated that a specific penta-BDE formulation might be produced and/or consumed in this region. The source was confirmed by the analysis of air–water gas exchange, which was nearly at equilibrium in spring and summer but displayed strong volatilization flux in autumn and winter, especially for BDE-28, indicating the potential wastewater discharge of PBDEs into the lake. In addition to PBDEs, hexabromobenzene, 1,2-bis(2,4,6-tribromophenoxy)ethane, decabromodiphenylethane, and Dechlorane Plus were detected in air samples, with an annual mean concentration of 23pgm−3for decabromodiphenylethane, and <4pgm−3for the others.