J 2024

Polybrominated diphenyl ether contamination in sediments from rivers in the western Niger Delta of Nigeria

IWEGBUE, Chukwujindu M. A., Ejonafuvwe V. OSHENYEN, Beatrice O. PERETIEMO-CLARKE, Chijioke OLISAH, Godwin E. NWAJEI et. al.

Základní údaje

Originální název

Polybrominated diphenyl ether contamination in sediments from rivers in the western Niger Delta of Nigeria

Autoři

IWEGBUE, Chukwujindu M. A., Ejonafuvwe V. OSHENYEN, Beatrice O. PERETIEMO-CLARKE, Chijioke OLISAH (566 Nigérie, garant, domácí), Godwin E. NWAJEI a Bice S. MARTINCIGH

Vydání

Marine Pollution Bulletin, Oxford, Pergamon-Elsevier Science Ltd, 2024, 0025-326X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 5.800 v roce 2022

Organizační jednotka

Přírodovědecká fakulta

UT WoS

001221860800001

Klíčová slova anglicky

Polybrominated diphenyl ethers; Sediments; River systems; Niger Delta

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 5. 6. 2024 10:25, Mgr. Michaela Hylsová, Ph.D.

Anotace

V originále

This study investigated the concentrations of 39 polybrominated diphenyl ether (PBDE) congeners in sediments from three rivers in the western Niger Delta of Nigeria that have been affected by pollution from urbanization and industrial activities. The Sigma 39 PBDE concentrations in sediments from these rivers ranged from 0.29 to 95.5, 5.15 to 121, and 0.73 to 66.1 ng g -1 for the Afiesere (AR), Edor (ER), and Okpare Rivers (OR), respectively. The homologue distribution patterns indicated the prominence of tetra- and penta-BDE congeners in sediments from these rivers. The ecological risk assessment results showed that the penta-BDEs were the primary source of risk to sediment -dwelling organisms in these rivers. However, the human health risk assessment indicated negligible risks for exposure of both adults and children to PBDEs in these sediments. The source apportionment suggests that the PBDE contamination in these river sediments was derived from long-distance migration, debromination of highly brominated congeners, and commercial penta-BDEs. These results reflect the use of penta-BDE formulations in this region rather than octa- and deca-BDE formulations.