Bioaccumulation of polybrominated diphenyl ethers, decabromodiphenyl ethane, and 1,2-bis(2,4,6-tribromophenoxy) ethane flame retardants in kingfishers (Alcedo atthis) from an electronic waste-recycling site in South China
Bioaccumulation of polybrominated diphenyl ethers, decabromodiphenyl ethane, and 1,2-bis(2,4,6-tribromophenoxy) ethane flame retardants in kingfishers (Alcedo atthis) from an electronic waste-recycling site in South China
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DOI：
10.1002/etc.1929
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发表时间：
2012-09-01
影响因子：
4.1
通讯作者：
Mai, Bi-Xian
中科院分区：
文献类型：
--
作者：
Mo, Ling;Wu, Jiang-Ping;Mai, Bi-Xian
研究了多溴联苯醚（PBDEs）、十溴二苯乙烷（DBDPE）和1，2-二（2，4，6-三溴苯氧基）乙烷（BTBPE）等溴系阻燃剂对中国南方某电子废弃物回收场常见翠鸟（Alcedo atthis）及其捕食鱼的影响。升高的BFR残留检测翠鸟，浓度中位数为8,760，12，和7.7？总多溴二苯醚、十溴二苯乙烷和四溴二苯醚分别为纳克/克脂重。对于大多数被调查的多溴二苯醚同源物，计算出的捕食者/被捕食者生物放大系数大于1，某些六溴、七溴和八溴二苯醚的数值相对较高（例如，溴化二苯醚153、183、196、197、202和203）。十溴二苯乙烷和BTBPE的平均生物放大系数分别为0.10 - 0.77和1.90 - 3.60。在某些捕食者/被捕食者对中，四溴二苯醚-聚乙烯的生物放大系数与某些三溴至五溴二苯醚的生物放大系数相当，甚至更高，这表明该化合物具有潜在的高环境风险。在翠鸟体内观察到的BDE 202和BDE 207与BDE 209的浓度比明显高于其猎物，这些比值与翠鸟体内BDE 209浓度的对数呈负相关。这可能表明，在这些鸟类中，BDE 209发生了生物转化，转化为BDE 202和BDE 207。这是首次评估十溴二苯乙烷和四溴二苯醚在野生食鱼鸟类体内的生物放大潜力。Environ.毒理学. 2012; 31：21532158。(c)2012年SETAC
Brominated flame retardants (BFRs) including polybrominated diphenyl ethers (PBDEs), decabromodiphenyl ethane (DBDPE), and 1,2-bis(2,4,6-tribromophenoxy) ethane (BTBPE), were investigated in common kingfishers (Alcedo atthis) and their prey fish from an electronic wasterecycling site in south China. Elevated BFR residues were detected in the kingfishers, with median concentrations of 8,760, 12, and 7.7?ng/g lipid weight for total PBDEs, DBDPE, and BTBPE, respectively. The calculated predator/prey biomagnification factors (BMFs) were greater than unity for most of the investigated PBDE congeners, with relatively higher values for some hexa-, hepta-, and octa-BDEs (e.g., BDEs 153, 183, 196, 197, 202, and 203). The average BMFs ranged 0.10 to 0.77 and 1.90 to 3.60 for DBDPE and BTBPE, respectively. The BMFs for BTBPE were comparable to or even greater than those for some tri- to penta-BDEs in certain predator/prey pairs, indicating potentially high environmental risks of this compound. Significantly higher concentration ratios of BDEs 202 and 207 to BDE 209 were observed in the kingfishers compared with their prey fish, and these ratios were negatively correlated with the logarithm of BDE 209 concentrations in the kingfishers. This may indicate biotransformation of BDE 209 to BDEs 202 and 207 in these birds. This is the first assessment of the biomagnification potentials of DBDPE and BTBPE in a wild piscivorous bird. Environ. Toxicol. Chem. 2012; 31: 21532158. (c) 2012 SETAC