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.

Basic information

Original name

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

Authors

IWEGBUE, Chukwujindu M. A., Ejonafuvwe V. OSHENYEN, Beatrice O. PERETIEMO-CLARKE, Chijioke OLISAH (566 Nigeria, guarantor, belonging to the institution), Godwin E. NWAJEI and Bice S. MARTINCIGH

Edition

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

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.800 in 2022

Organization unit

Faculty of Science

UT WoS

001221860800001

Keywords in English

Polybrominated diphenyl ethers; Sediments; River systems; Niger Delta

Tags

Tags

International impact, Reviewed
Změněno: 5/6/2024 10:25, Mgr. Michaela Hylsová, Ph.D.

Abstract

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.