Comprehensive target analysis and TOP assay of per- and polyfluoroalkyl substances (PFAS) in wild boar livers indicate contamination hot-spots in the environment.
Comprehensive target analysis and TOP assay of per- and polyfluoroalkyl substances (PFAS) in wild boar livers indicate contamination hot-spots in the environment.
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对野猪肝脏中全氟烷基物质和多氟烷基物质 (PFAS) 的综合目标分析和 TOP 测定表明环境中存在污染热点。
DOI：
10.1016/j.scitotenv.2023.162028
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
T. Reemtsma
中科院分区：
文献类型：
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作者：
J. Rupp;Marc Guckert;U. Berger;Wiebke Drost;A. Mader;K. Nödler;Gudrun Nürenberg;Jona Schulze;Reiner Söhlmann;T. Reemtsma
研究了野猪肝脏作为陆地环境中全氟和多氟烷基物质（PFAS）生物指示剂的适用性。从3个不同地区采集的50只动物样品中分析了66种全氟烷基酸（PFAS），包括传统PFAS、新型全氟烷基酸（PFAA）替代品和前体物。此外，进行总可氧化前体（TOP）测定以确定前体形成全氟辛酸的可能性。总共有31个PFAS被检测到特定地点的污染概况。PS区和IE区肝脏中的全氟辛烷磺酸浓度（湿重分别为567和944微克/千克）比BC区（120微克/千克）高出数倍。在PS区和BC区，主要的全氟辛烷磺酸是遗留化合物全氟辛烷磺酸（分别为426和82微克/千克），在IE区，主要的全氟辛酸是全氟辛酸（650微克/千克）。在IE区，化合物4，8-二氧杂-3H-全氟壬酸（DONA）和六氟环氧丙烷二聚酸（HFPO-DA）（用作全氟辛酸的替代品）的含量分别为15和0.29微克/千克。PFAAs的形成潜力在PS区最高，但一般低于PFAAs污染。野猪肝脏中全氟烷基羧酸（PFCAs）的模式反映了当地土壤在两个热点地区IE和PS的污染。这是野猪和土壤之间PFAS污染的第一次比较，表明野猪肝脏是陆地环境中PFAS污染的合适生物指示剂。此外，在IE区的陆地样本中，发现传统PFAS比河流样本（悬浮颗粒物和鲢鱼片）保留的时间更长。
The suitability of wild boar liver as a bioindicator of per- and polyfluoroalkyl substances (PFAS) in the terrestrial environment was investigated. Samples from 50 animals in three different areas associated with (1) contaminated paper sludges distributed on arable land (PS), (2) industrial emissions of PFAS (IE) and (3) background contamination (BC) were analyzed for 66 PFAS, including legacy PFAS, novel substitutes and precursors of perfluoroalkyl acids (PFAAs). Additionally, theTotal Oxidizable Precursor(TOP) assay was performed to determine the formation potential of PFAAs from precursors. In total, 31 PFAS were detected with site-specific contamination profiles. PFAS concentrations in livers from area PS and IE (567 and 944 μg kg−1wet weight, respectively) were multiple times higher than from area BC (120 μg kg−1). The dominating PFAS were the legacy compounds perfluorooctane sulfonic acid (PFOS) in areas PS and BC (426 and 82 μg kg−1, respectively) and perfluorooctanoic acid (PFOA) in area IE (650 μg kg−1). In area IE, the compounds 4,8-dioxa-3H-perfluorononanoic acid (DONA) and hexafluoropropylene oxide dimer acid (HFPO-DA) – which are used as substitutes for PFOA – were determined at 15 and 0.29 μg kg−1, respectively. The formation potential of PFAAs was highest in area PS, but generally lower than the contamination with PFAAs. The pattern of perfluoroalkyl carboxylic acids (PFCAs) in wild boar liver reflects the contamination of the local soil at the two hot-spot areas IE and PS. This first comparison of PFAS contamination between wild boars and soil suggests that wild boar livers are suitable bioindicators for PFAS contamination in the terrestrial environment. Moreover, in terrestrial samples from area IE, legacy PFAS were found to be retained for a longer period as compared to riverine samples (suspended particulate matter and chub filet).