20.500.12556/RUL-154706 Exposure assessment of anticoagulant rodenticides in the liver of red foxes (Vulpes vulpes) in Slovenia The study deals with the environmental residues of anticoagulant rodenticides (ARs) in Slovenia to evaluate the toxicological risk of secondary poisoning of red foxes (Vulpes vulpes) as representatives of non-target wildlife, and in relation to the investigated use patterns of ARs and specific local parameters in Slovenia. From 2019 to 2022, 148 liver tissue samples of adult red foxes were collected from almost all state geographical regions. The samples were extracted with methanol/water (2:1, v/v), cleaned-up using a solid supported liquid-liquid extraction, and measured by liquid chromatography-electrospray tandem mass spectrometry (LC-ESI-MS/MS) with reporting limits of 0.5 to 5.0 ng/g. Residues of at least one rodenticide were detected in 77.7% of the samples. The second generation ARs of bromadiolone, brodifacoum and difenacoum were the most frequently found, appearing in 75.0, 51.4, and 18.9% of the samples, respectively. Concentrations of pooled ARs ranged from 1.5 to 2866.5 ng/g with mean and median values of 601.4 and 350.2 ng/g, respectively. We determined bromadiolone and brodifacoum at concentrations of ≥800 ng/g in 10.8 and 10.1% of the samples, and 1.4 and 0.7% of the samples contained residues >2000 ng/g, respectively. These concentrations are much higher than those found in comparable studies in Europe and elsewhere in the world. Residues of ARs were detected in all monitored statistical regions of Slovenia, with higher concentrations in the eastern parts of the country. First generation ARs were found in only 9.5% of samples, and residues were below 10 ng/g with one exception (coumatetralyl with 55 ng/g). The results of the study indicate a serious toxicological risk for red foxes in Slovenia as part of the Western Balkans, and will contribute to the growing body of knowledge about the protection of European ecosystems, as wildlife is not limited by national borders. anticoagulant poisons wild animals environmental monitoring mass spectrometry true false true Angleški jezik Ni določen Članek v reviji 2024-02-23 12:19:37 2024-02-23 12:19:42 2024-05-28 10:50:46 0000-00-00 00:00:00 2024 0 0 11 str. art. 170400 Vol. 918 Mar. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 615.9 0048-9697 10.1016/j.scitotenv.2024.170400 183561731 exposure-cerkvenik.pdf exposure-cerkvenik.pdf 1 93B009B53A4E3D32866A3293D0E9C2BB c879a7590ac96a3e970e735be78d9f5afb6399cdf9987253426e1ac80e4ac3ec b11c124d-d23e-11ee-9607-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=181239 https://www.sciencedirect.com/science/article/pii/S0048969724005357 0 ec0d105f-1cc9-11ef-a9a3-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=185663 Veterinarska fakulteta Ekonomska fakulteta Biotehniška fakulteta 0 0 0