Spatiotemporal Analysis of Perfluoroalkyl Substances in White-Tailed Eagle (Haliaeetus albicilla) Nestlings from Northern Norway-A Ten-Year Study.,Environmental Science & Technology

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Spatiotemporal Analysis of Perfluoroalkyl Substances in White-Tailed Eagle (Haliaeetus albicilla) Nestlings from Northern Norway-A Ten-Year Study.
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2020-04-01 , DOI: 10.1021/acs.est.9b06818
William Jouanneau ₁ , Bård-Jørgen Bårdsen ₁ , Dorte Herzke ₂ , Trond Vidar Johnsen ₁ , Igor Eulaers ₃ , Jan Ove Bustnes ₁

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The white-tailed eagle (Haliaeetus albicilla) in Scandinavia has suffered from impaired reproduction due to high exposure to industrial pollution between the 1960s and 1980s. While population numbers are rising again, new contaminants, such as per- and polyfluoroalkyl substances (PFAS), are increasingly found in high trophic avifauna and are of concern to potentially impact once again on population health. In the present study, we examined PFAS levels in plasma of white-tailed eagle nestlings from northern Norway over the last decade (2008-2017). While PFOA and PFNA exposure did not follow a significant time trend, PFOS and PFHxS concentrations decreased over time, and ≥C11 perfluorinated carboxylic acids only seem to level off during the last four years. This may in fact be the first evidence for a change in the trend for some of these compounds. Furthermore, since several PFAS are expected to be highly present in aqueous film-forming foams used at airports, we also investigate the potential of the two main airports in the region to act as hotspots for PFAS. Our results indeed show decreasing exposure to PFOA with distance to the airports. Altogether, our results seem to show that legislation actions are effective, and continued concern for PFAS exposure of high trophic wildlife is still warranted, even in the northern environment.

中文翻译：

挪威北部白尾鹰（Haliaeetus albicilla）雏鸟全氟烷基物质的时空分析-十年研究。

斯堪的纳维亚半岛的白尾鹰（Haliaeetus albicilla）由于在1960年代至1980年代之间高度暴露于工业污染而遭受繁殖障碍。当种群数量再次上升时，在高营养鸟类中越来越多地发现新污染物，例如全氟烷基物质和多氟烷基物质（PFAS），人们担心它们会再次对种群健康产生影响。在本研究中，我们检查了过去十年（2008-2017年）来自挪威北部的白尾鹰雏鸟血浆中的PFAS水平。尽管PFOA和PFNA的暴露没有遵循明显的时间趋势，但PFOS和PFHxS的浓度随时间下降，并且仅在最近四年中，≥C11的全氟化羧酸才趋于稳定。实际上，这可能是这些化合物中某些趋势发生变化的第一个证据。此外，由于预计在机场使用的水性成膜泡沫中会大量存在多种PFAS，因此我们也研究了该地区两个主要机场作为PFAS热点的潜力。我们的结果确实表明，随着距机场的距离，PFOA的暴露在减少。总体而言，我们的结果似乎表明，立法行动是有效的，即使在北部环境中，也仍然需要继续关注PFAS对高营养野生生物的暴露。

更新日期：2020-04-23

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