Fluorine mass balance analysis in wild boar organs from the Bohemian Forest National Park

• DOI: 10.1016/j.scitotenv.2024.171187
• Publication Date: 2024-02-24T07:18:44Z
• Authors: Till Schröder; Viktoria Müller; Marc Preihs; Jan Borovička; Raquel Gonzalez d...; Andrew Kindness; Jörg Feldmann
• Keywords: Perfluorooctanoic acid; Wild boar; BOAR

Wild boars have been reported as bioindicators for per- and polyfluoroalkyl substances (PFAS) in a variety of studies. However, data about PFAS levels wild from sites with limited industrial general human activity is scarce. In this study, boar (Sus scrofa) organs the Bohemian Forest National Park (Czech Republic) were used pollution. work, 29 livers 24 kidneys 30 (0.5–5 years) investigated using fluorine mass balance approach. For this, samples measured high performance liquid chromatography electrospray ionisation tandem spectrometry (HPLC-ESI-MS/MS), targeting PFAS, including legacy replacement direct total oxidisable precursor assay (dTOPA) combustion ion (CIC). Perfluorocarboxylic acids (PFCAs) C7 to C14 perfluorooctanesulfonic acid (PFOS) detected >50 % samples. livers, PFCAs dominated profile median concentrations 230 μg/kg perfluorononanoic (PFNA) 75 perfluorooctanoic (PFOA). PFOA PFNA one order magnitude higher than caught rural NE Germany considered background concentration. PFOS liver contributed only Σc(PFASTarget) concentration 170 μg/kg. Kidneys contain an average 2460 μg F/kg 6800 extractable organic (EOF) respectively. add up maximum 10 fluorine. After oxidisation samples, PFOA, Σc(PFASdTOPA) increased but could not explain EOF. The elevated may indicate differences biomagnification different habitats or unidentified source proximity national park.