Abstract Muscles and livers of herring gulls (Larus argentatus) found in the coastal area of the southern Baltic Sea were tested for the presence of hexabromocyclododecane (HBCD) isomers. They were detected in the muscles (ΣHBCD = 42.82 ± 30.65 ng g−1 l.w.) and livers (ΣHBCD = 65.51±27.96 ng g−1 l.w.) of all examined gulls. The α-HBCD isomer dominates in all types of samples. Our study has shown that bodies of gulls are less contaminated with HBCD than bodies of aquatic birds from other regions of the world. There was no clear correlation between HBCD concentrations and sex and age of birds. Nevertheless, it was indicated that the highest concentrations of HBCD and the α-HBCD isomer were found in the livers of immature females (mean = 89.31 ± 21.63 ng g−1 l.w. and mean = 76.72±24.54 ng g−1 l.w., respectively). The highest liver sequestration rates of the α-HBCD isomer were found in both adult and immature males (mean = 7.7 ± 13.7 and mean = 6.2 ± 11.9, respectively).

中文翻译：

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波罗的海南部沿海地区鲱鸥的六溴环十二烷污染

摘要 对在波罗的海南部沿海地区发现的鲱鸥 (Larus argentatus) 的肌肉和肝脏进行了六溴环十二烷 (HBCD) 异构体的检测。它们在所有受检海鸥的肌肉 (ΣHBCD = 42.82 ± 30.65 ng g-1 lw) 和肝脏 (ΣHBCD = 65.51±27.96 ng g-1 lw) 中检测到。α-六溴环十二烷异构体在所有类型的样品中占主导地位。我们的研究表明，与来自世界其他地区的水鸟相比，海鸥的身体受到六溴环十二烷的污染较少。六溴环十二烷浓度与鸟类的性别和年龄之间没有明显的相关性。然而，表明在未成熟雌性的肝脏中发现了最高浓度的六溴环十二烷和 α-六溴环十二烷异构体（平均值分别为 = 89.31 ± 21.63 ng g-1 lw 和平均值 = 76.72±24.54 ng g-1 lw） .