State Key Joint Laboratory for Environmental Simulation & Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
Chemosphere. 2010 Aug;80(10):1207-12. doi: 10.1016/j.chemosphere.2010.06.013. Epub 2010 Jul 1.
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 220 pg m(-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 23 pg m(-3) for decabromodiphenylethane, and <4 pg m(-3) for the others.
对中国东部太湖的空气和水样进行了 2004 年以来的采集，并对 33 种多溴二苯醚（PBDE）同系物和其他七种溴代和氯代阻燃剂进行了分析。大气中总 PBDE 的年浓度为 220 皮克/立方米；BDE-209 最为丰富（平均占总 PBDE 的 41%），其次是 BDE-47（17%）和 BDE-28（15%）。四溴和三溴同系物（包括 BDE-47、-28、-49、-66 和-17）的相对丰度而不是 BDE-99 表明，在该地区可能生产和/或消耗了一种特定的五溴配方。通过气-水气体交换分析证实了这一来源，该分析表明，春季和夏季几乎处于平衡状态，但在秋季和冬季显示出强烈的挥发通量，特别是对于 BDE-28，这表明 PBDEs 可能通过废水排入湖中。除了 PBDEs 之外，空气中还检测到六溴苯、1,2-双（2,4,6-三溴苯氧基）乙烷、十溴联苯醚和 Dechlorane Plus，其中十溴联苯醚的年平均浓度为 23 皮克/立方米，其他物质的浓度均<4 皮克/立方米。
