Motas Miguel, Jerez-Rodríguez Silvia, Veiga-Del-Baño José Manuel, Ramos Juan José, Oliva José, Cámara Miguel Ángel, Andreo-Martínez Pedro, Corsolini Simonetta
Department of Toxicology, Faculty of Veterinary, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus of Espinardo, 30100 Murcia, Spain.
Department of Agricultural Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Campus of Espinardo, 30100 Murcia, Spain.
Toxics. 2025 May 24;13(6):430. doi: 10.3390/toxics13060430.
The aim of this study was to evaluate the concentration of polychlorinated biphenyls (PCBs) in chinstrap penguins () and krill () from Deception Island (South Shetland Islands, Antarctica) to provide additional data of the PCB presence in Antarctica. To this end, 34 samples of different tissues corresponding to four adult specimens and six chicks, and krill from the area were studied. The selected samples were analyzed for the determination of 27 congeners of PCBs by gas chromatography. Adult specimens accumulated PCBs mainly in the liver (33%, 1330.82 ± 733.69 pg·g wet weight, w.w.) and muscle (25%, 1029.73 ± 823.4 pg·g w.w.), whereas the brain showed the highest levels in chicks (36%, 1215.83 ± 955.19 pg·g w.w.). Regarding krill, our results were five to eight times lower than the levels found in krill from King George Island and from the Ross Sea. Further, a distribution analysis of PCBs in penguins according to Regulation 2013/39/UE and Commission Regulation (EU) No 277/2012 was also performed, and PCBs were categorized into three groups (dioxin-like-mono-, non-dioxin-like-indicators, and others-non-dioxin-like). The data indicate that the content of the other group was generally higher than that of the other two PCB groups for both adults and chicks. Notably, the liver consistently exhibited the highest proportion of the other group.
本研究的目的是评估欺骗岛（南极南设得兰群岛）南极企鹅和磷虾体内多氯联苯（PCBs）的浓度，以提供南极地区多氯联苯存在情况的更多数据。为此，对来自该地区的四只成年企鹅标本、六只雏鸟的不同组织样本以及磷虾进行了研究。通过气相色谱法对所选样本进行分析，以测定27种多氯联苯同系物。成年企鹅标本体内的多氯联苯主要蓄积在肝脏（33%，湿重1330.82±733.69 pg·g，w.w.）和肌肉（25%，1029.73±823.4 pg·g w.w.）中，而雏鸟体内大脑中的多氯联苯含量最高（36%，1215.83±955.19 pg·g w.w.）。关于磷虾，我们的研究结果比在乔治王岛和罗斯海磷虾中发现的水平低五到八倍。此外，还根据欧盟法规2013/39/UE和欧盟委员会法规（EU）No 277/2012对企鹅体内的多氯联苯进行了分布分析，并将多氯联苯分为三组（类二恶英-单类、非类二恶英-指示物和其他-非类二恶英）。数据表明，对于成年企鹅和雏鸟而言，其他组的含量通常高于另外两组多氯联苯。值得注意的是，肝脏中其他组的比例始终最高。
