Assessment of PCDD/Fs, dioxin-like PCBs and PBDEs in Mediterranean striped dolphins.
Mediterranean Sea
POPs
Pollution
Stenella coeruleoalba
TEQ
Journal
Marine pollution bulletin
ISSN: 1879-3363
Titre abrégé: Mar Pollut Bull
Pays: England
ID NLM: 0260231
Informations de publication
Date de publication:
Jul 2020
Jul 2020
Historique:
received:
11
02
2020
revised:
20
04
2020
accepted:
21
04
2020
entrez:
9
6
2020
pubmed:
9
6
2020
medline:
11
7
2020
Statut:
ppublish
Résumé
Bio-accumulation of high levels of persistent organic pollutants represent a serious conservation concern for Mediterranean marine odontocetes. In this study, blubber samples from 10 striped dolphins (Stenella coeruleoalba) stranded along the Italian coasts during 2015-2016 were analyzed. All specimens showed dl-PCBs > PBDEs ≫ PCDD/Fs. Median concentrations were 1820 ng/g l.w., 456 ng/g l.w. and 23.9 pg/g l.w., respectively. dl-PCBs accounted for 93.3% of total TEQs. PBDE concentrations suggest that the Mediterranean basin may be considered a hotspot for organobromine compounds. OCDD did not represent the greatest contributor to PCDD/Fs profile, most likely due to a change in dioxin environmental sources in the last two-three decades. Despite international regulations, the present study emphasized that POP exposure levels in Mediterranean striped dolphins have not declined significantly in recent years. Toxicological and risk assessment studies on this sentinel species may provide an early indication of potential adverse health effects on Mediterranean ecosystems.
Identifiants
pubmed: 32510364
pii: S0025-326X(20)30325-8
doi: 10.1016/j.marpolbul.2020.111207
pii:
doi:
Substances chimiques
Dibenzofurans
0
Dibenzofurans, Polychlorinated
0
Dioxins
0
Halogenated Diphenyl Ethers
0
Polychlorinated Dibenzodioxins
0
Polychlorinated Biphenyls
DFC2HB4I0K
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
111207Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
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.