PMID- 36273690 OWN - NLM STAT- MEDLINE DCOM- 20221207 LR - 20221207 IS - 1873-6424 (Electronic) IS - 0269-7491 (Linking) VI - 316 IP - Pt 1 DP - 2023 Jan 1 TI - Assessment of contaminants in blue sharks from the Northeast Atlantic: Profiles, accumulation dynamics, and risks for human consumers. PG - 120467 LID - S0269-7491(22)01681-5 [pii] LID - 10.1016/j.envpol.2022.120467 [doi] AB - Chemical pollution is a major threat to marine ecosystems, and top predators such as most shark species are extremely vulnerable to being exposed and accumulating contaminants such as metals and persistent organic pollutants (POPs). This work aimed to study the degree, composition, and the sources of contamination in the blue shark (Prionace glauca) inhabiting the Northeast Atlantic, as well as the potential risk faced by human consumers. A total of 60 sharks were sampled in situ aboard fishing vessels, and the concentrations of a set of metals and POPs were analysed in various tissues and complemented with stable isotope analyses. High levels of contaminants were found in most sharks sampled. The concentrations of most metals were higher in the muscle when compared with the liver. Regarding the dangers to consumers posed by the concentrations of arsenic (As), mercury (Hg), and lead (Pb), over 75% of the sharks presented muscle concentrations of at least one contaminant above the legal limits for human consumption, and a risk assessment determined that consumption of meat of these sharks exceeding 0.07 Kg per week could potentially expose human consumers to dangerous amounts of methylmercury (MeHg). Additionally, the assessment of single contaminants may lead to an underestimation of the risk for the human health. Finally, the overall accumulation of contaminants seems to be mostly influenced by the sharks' geographical distribution, rather than sex, size, or trophic level of their prey. CI - Copyright (c) 2022 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Alves, Luis M F AU - Alves LMF AD - MARE- Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, ESTM, Polytechnic of Leiria, Peniche, Portugal. Electronic address: luis.f.alves@ipleiria.pt. FAU - Lemos, Marco F L AU - Lemos MFL AD - MARE- Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, ESTM, Polytechnic of Leiria, Peniche, Portugal. FAU - Moutinho, Ariana B AU - Moutinho AB AD - MARE- Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, ESTM, Polytechnic of Leiria, Peniche, Portugal. FAU - Ceia, Filipe R AU - Ceia FR AD - University of Coimbra, MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Department of Life Sciences, Calcada Martim de Freitas, 3000-456 Coimbra, Portugal. FAU - Munoz-Arnanz, Juan AU - Munoz-Arnanz J AD - Dept. of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, (IQOG-CSIC), Madrid, Spain. FAU - Jimenez, Begona AU - Jimenez B AD - Dept. of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry, (IQOG-CSIC), Madrid, Spain. FAU - Cabral, Henrique AU - Cabral H AD - INRAE, UR EABX, 50 Avenue de Verdun, 33612, Cestas, France. FAU - Novais, Sara C AU - Novais SC AD - MARE- Marine and Environmental Sciences Centre & ARNET - Aquatic Research Infrastructure Network Associated Laboratory, ESTM, Polytechnic of Leiria, Peniche, Portugal. LA - eng PT - Journal Article DEP - 20221020 PL - England TA - Environ Pollut JT - Environmental pollution (Barking, Essex : 1987) JID - 8804476 RN - 0 (Water Pollutants, Chemical) RN - FXS1BY2PGL (Mercury) RN - N712M78A8G (Arsenic) RN - 0 (Metals) SB - IM MH - Humans MH - Animals MH - *Water Pollutants, Chemical/analysis MH - Ecosystem MH - *Sharks MH - *Mercury/analysis MH - *Arsenic/analysis MH - Metals OTO - NOTNLM OT - Elasmobranchs OT - Marine biomonitoring OT - Metals OT - Pollution OT - TXRF OT - human risk analysis COIS- 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. EDAT- 2022/10/24 06:00 MHDA- 2023/02/25 06:00 CRDT- 2022/10/23 19:35 PHST- 2022/07/20 00:00 [received] PHST- 2022/10/14 00:00 [revised] PHST- 2022/10/15 00:00 [accepted] PHST- 2022/10/24 06:00 [pubmed] PHST- 2023/02/25 06:00 [medline] PHST- 2022/10/23 19:35 [entrez] AID - S0269-7491(22)01681-5 [pii] AID - 10.1016/j.envpol.2022.120467 [doi] PST - ppublish SO - Environ Pollut. 2023 Jan 1;316(Pt 1):120467. doi: 10.1016/j.envpol.2022.120467. Epub 2022 Oct 20.