Buytaert Jodie, Eens Marcel, Bervoets Lieven, Groffen Thimo
ECOSPHERE, Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
Behavioural Ecology and Ecophysiology Group, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
Toxics. 2025 Aug 19;13(8):689. doi: 10.3390/toxics13080689.
This study investigated the distribution of 29 legacy and emerging per- and polyfluoroalkyl substances (PFASs) in soil, nettles, invertebrates, and plasma and feathers of great tits () of a terrestrial ecosystem near a fluorochemical plant. Additionally, the vertical distribution of PFASs in soil was assessed, as well as taxon-specific differences among terrestrial invertebrate species. Finally, associations between soil and biota, and among biological matrices, were assessed. Most accumulation profiles were dominated by long-chained PFASs, mainly perfluorooctane sulfonic acid (PFOS), while short-chained PFASs were less detected. Long-chained perfluoroalkyl carboxylic acids (PFCAs) adsorbed in the upper soil layers, while short-chained PFAS and perfluoroalkyl sulfonic acids (PFSAs) tended to migrate deeper. The several taxon-specific differences were likely due to dietary differences. Significant associations, especially for long-chained PFCAs and PFOS, were found among most matrices. This indicates that (1) these PFASs found in these matrices are most likely originating from the same pollution source, (2) there is a possible transfer of these PFASs between matrices, (3) there is bioaccumulation from one to another matrix, and (4) some matrices might be used as proxies to estimate PFAS concentrations in other terrestrial matrices. Finally, feathers accumulated more PFASs than plasma, as they were most likely exposed through different routes of exposure and PFAS affinity. Therefore, they are not suitable for internal PFAS monitoring but can provide complementary information about the exposure and about the presence/absence of PFASs in certain habitats.
本研究调查了一家氟化工厂附近陆地生态系统中土壤、荨麻、无脊椎动物以及大山雀（）的血浆和羽毛中29种传统和新兴的全氟和多氟烷基物质（PFASs）的分布情况。此外，还评估了PFASs在土壤中的垂直分布，以及陆地无脊椎动物物种之间的分类群特异性差异。最后，评估了土壤与生物群之间以及生物基质之间的关联。大多数积累情况以长链PFASs为主，主要是全氟辛烷磺酸（PFOS），而短链PFASs的检测较少。长链全氟烷基羧酸（PFCAs）吸附在上层土壤中，而短链PFASs和全氟烷基磺酸（PFSAs）则倾向于向更深层迁移。几种分类群特异性差异可能是由于饮食差异造成的。在大多数基质之间发现了显著的关联，特别是对于长链PFCAs和PFOS。这表明：（1）这些基质中发现的这些PFASs很可能来自同一污染源；（2）这些PFASs在基质之间可能存在转移；（3）存在从一种基质到另一种基质的生物累积；（4）一些基质可作为估算其他陆地基质中PFASs浓度的替代指标。最后，羽毛比血浆积累了更多的PFASs，因为它们很可能通过不同的暴露途径和PFAS亲和力而受到暴露。因此，它们不适合用于内部PFAS监测，但可以提供有关暴露以及某些栖息地中PFASs存在与否的补充信息。
