Biomonitoring of persistent pollutants in grey seal (Halichoerus seagrypus) pups from the Gulf of Riga, Baltic Sea.

Autor: Salcedo S; Area of Toxicology, Oceanosphera Group, Department of Health Sciences, Faculty of Veterinary Medicine, University of Murcia, 30100 Murcia, Spain., Di Marzio A; Area of Toxicology, Oceanosphera Group, Department of Health Sciences, Faculty of Veterinary Medicine, University of Murcia, 30100 Murcia, Spain; Department of Science and Education, Rigas Nacionalais zoologiskais darzs (Riga Zoo), Meza prospekts 1, LV-1014 Riga, Latvia., Martínez-López E; Area of Toxicology, Oceanosphera Group, Department of Health Sciences, Faculty of Veterinary Medicine, University of Murcia, 30100 Murcia, Spain; Toxicology and Risk Assessment Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), University of Murcia, 30100 Murcia, Spain. Electronic address: emmaml@um.es.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Dec; Vol. 209 (Pt B), pp. 117198. Date of Electronic Publication: 2024 Oct 31.
DOI: 10.1016/j.marpolbul.2024.117198
Abstrakt: We analyzed for the first time the concentration of potentially toxic trace elements Hg, As, Pb, Cr and Se and POPs (PCBs and OCPs) in tissues of 41 grey seal pups (Halichoerus grypus) stranded on the shores of the Gulf of Riga. Lanugo was the sample with the highest concentrations of all trace elements except Hg. The concentrations found in this biological matrix appeared as follows: Hg (2.50 ± 1.43 μg/g); Se (1.22 ± 0.82 μg/g); Cr (0.96 ± 1.51 μg/g); As (0.95 ± 1.03 μg/g); Pb (0.50 ± 0.60 μg/g). POPs were∑PCB (0.566 ± 0.520 μg/g), ∑DDT (0.522 ± 0.454 μg/g), ∑HCH (0.043 ± 0.045 μg/g) and Chlordane (0.041 μg/g). We detected brain Hg levels above the threshold described for neurobehavioural changes and some individuals also exceeded the toxic threshold described for PCBs. Thus, the health of grey seal pups could be affected by both groups of pollutants.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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