First study of bromophenols and hexabromocyclododecanes in seafood from North Africa (case of Bizerte Lagoon, Tunisia): occurrence and human health risk.

Autor: Mahfoudhi G; Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Department of Chemistry, Faculty of Sciences of Bizerte, University of Carthage, 7021, Zarzouna, Tunisia.; Sciensano, Scientific Direction Chemical and Physical Health Risks, Rue Juliette Wytsman 14, 1050, Brussels, Belgium., Ameur WB; Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Department of Chemistry, Faculty of Sciences of Bizerte, University of Carthage, 7021, Zarzouna, Tunisia. benameuroualid@yahoo.fr.; Ecologie de La Faune Terrestre UR17ES44, Département Des Sciences de La Vie, Faculté Des Sciences de Gabès, Université de Gabès, Gabès, Tunisia. benameuroualid@yahoo.fr., Malysheva SV; Sciensano, Scientific Direction Chemical and Physical Health Risks, Rue Juliette Wytsman 14, 1050, Brussels, Belgium., Szternfeld P; Sciensano, Scientific Direction Chemical and Physical Health Risks, Rue Juliette Wytsman 14, 1050, Brussels, Belgium., Touil S; Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Department of Chemistry, Faculty of Sciences of Bizerte, University of Carthage, 7021, Zarzouna, Tunisia., Driss MR; Laboratory of Hetero-Organic Compounds and Nanostructured Materials (LR18ES11), Department of Chemistry, Faculty of Sciences of Bizerte, University of Carthage, 7021, Zarzouna, Tunisia., Joly L; Sciensano, Scientific Direction Chemical and Physical Health Risks, Rue Juliette Wytsman 14, 1050, Brussels, Belgium.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2023 May; Vol. 30 (23), pp. 64499-64516. Date of Electronic Publication: 2023 Apr 18.
DOI: 10.1007/s11356-023-26901-w
Abstrakt: In spite of the fact that bromophenols (BPs) and hexabromocyclododecanes (HBCDs) are widely used as flame retardants, no data was available until now on the levels of these two chemicals in North Africa biota. Seafood products might represent one of the main sources of dietary exposure to persistent organic pollutants such as non-dioxin-like polychlorinated biphenyls (ndl-PCBs), brominated flame retardants (BFRs), and polycyclic aromatic hydrocarbons (PAHs). In this study, the concentrations of the ndl-PCBs, PAH 4 , and BFRs were determined in seafood products from a North African lagoon (Bizerte lagoon). Almost all the compounds were detected (15 out of 18) in the analyzed marine organisms. The accumulation of the contaminants followed the order BFRs > ndl-PCB > PAH 4 . Mean contaminants concentrations ranged from 0.35 to 28.7 ng g -1 ww for ∑ndl-PCBs; from below limit of quantification to 476 ng g -1 ww for ∑BFRs and from below limit of quantification to 5.30 ng g -1 ww for ∑PAH 4 . PCB 138, 153, and 180 were the most frequently detected ndl-PCB congeners due to their high resistance to metabolic degradation. 2,4-dibromophenol (2,4-DBP) was the predominant BFR. Chrysene (Chr) was found to be the main contributor to the total PAH 4 concentration. Contaminant profiles varied significantly among seafood which may be due to the difference in lipid content, trophic level, feeding behavior, and metabolism. To assess the human health risks, the average daily dose exposure of ndl-PCBs, the dietary daily intake of PAHs and the estimated dietary intake of 3,3-,5,5-tetrabromobisphenol A (TBBPA) and HBCD from seafood were estimated. Findings indicated no adverse effects for human health from any of the analyzed contaminants, except for ndl-PCBs in eel.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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