Persistent organic pollutants and polycyclic aromatic hydrocarbons in livers of stranded Arctocephalus australis in southern Brazilian beaches.
Mar Pollut Bull
; 200: 116129, 2024 Mar.
Article
em En
| MEDLINE
| ID: mdl-38340375
ABSTRACT
23 livers of South American fur seal (Arctocephalus australis) found stranded in southern Brazilian beaches were evaluated for Persistent Organic Pollutants (POPs) and Polycyclic Aromatic Hydrocarbons (PAHs). POPs (DDTs, mirex, eldrin, dieldrin, aldrin, isodrin, HCHs, chlordanes and PCBs) and PAHs in livers were Soxhlet extracted, analyzed and quantified using Gas Chromatography Tandem Mass Spectrometry (GC-TQMS). The main POPs found were PCBs and DDTs, totaling 81 %. Among pesticides, mirex followed DDTs, possibly due to usage in Uruguay, followed by Σdrins, ΣCHLs and ΣHCHs. Naphthalene was the major PAH found, while heavier compounds did not significantly bioaccumulate. Concentrations of POPs resembled previous findings for A. australis. Considering only juveniles, no POPs showed significant differences between sexes. Lipidic content, weight and length did not show any correlation with POP concentration. This was the first record of PAHs and PBDEs in South American fur seals, and the levels of these pollutants were relatively low.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Praguicidas
/
Hidrocarbonetos Policíclicos Aromáticos
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Poluentes Químicos da Água
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Bifenilos Policlorados
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Otárias
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Poluentes Ambientais
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Hidrocarbonetos Clorados
Limite:
Animals
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Mar Pollut Bull
/
Mar. pollut. bull
/
Marine pollution bulletin
Ano de publicação:
2024
Tipo de documento:
Article