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Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Sediments from Beiluo River
The distribution and source of polychlorinated biphenyls (PCBs) pollution in the Beiluo River, the secondary tributary of the Yellow River, still remain unclear. With the purpose of determining the distribution, origins, and pollution levels of PCBs and their consequences on ecological risks, the co...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9958545/ https://www.ncbi.nlm.nih.gov/pubmed/36851013 http://dx.doi.org/10.3390/toxics11020139 |
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author | Han, Linrong Chang, Chao Yan, Shiwei Qu, Chengkai Tian, Yulu Guo, Jipu Guo, Jiahua |
author_facet | Han, Linrong Chang, Chao Yan, Shiwei Qu, Chengkai Tian, Yulu Guo, Jipu Guo, Jiahua |
author_sort | Han, Linrong |
collection | PubMed |
description | The distribution and source of polychlorinated biphenyls (PCBs) pollution in the Beiluo River, the secondary tributary of the Yellow River, still remain unclear. With the purpose of determining the distribution, origins, and pollution levels of PCBs and their consequences on ecological risks, the concentrations of 27 PCBs at 17 locations in the sediments of the Beiluo River were examined in this study. The results showed that the mass concentrations of ∑PCBs in the sediment ranged from 0.12 to 1.25 ng∙g(−1) (DW), with the highest point at sampling site B13 downstream of the river. Compared to most river sediments, both domestically and internationally, the concentration of PCBs in the sediment of the Beiluo River was at a low level, with 10-PCB and 6-PCB as the main components, indicating that the PCBs that are difficult to volatilise and degrade are more likely to remain in the sediment. The origins of PCBs in the sediments of the Beiluo River were examined by using positive matrix factorisation (PMF). The results revealed that the contamination of PCBs in the sediments of the Beiluo River mainly resulted from industrial emissions, technical PCB mixtures, and coal and wood combustion. The results of the ecological risk assessment indicated that PCBs in the sediments of the study area rarely contribute to adverse biological effects and the potential low risk to the environment. |
format | Online Article Text |
id | pubmed-9958545 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-99585452023-02-26 Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Sediments from Beiluo River Han, Linrong Chang, Chao Yan, Shiwei Qu, Chengkai Tian, Yulu Guo, Jipu Guo, Jiahua Toxics Article The distribution and source of polychlorinated biphenyls (PCBs) pollution in the Beiluo River, the secondary tributary of the Yellow River, still remain unclear. With the purpose of determining the distribution, origins, and pollution levels of PCBs and their consequences on ecological risks, the concentrations of 27 PCBs at 17 locations in the sediments of the Beiluo River were examined in this study. The results showed that the mass concentrations of ∑PCBs in the sediment ranged from 0.12 to 1.25 ng∙g(−1) (DW), with the highest point at sampling site B13 downstream of the river. Compared to most river sediments, both domestically and internationally, the concentration of PCBs in the sediment of the Beiluo River was at a low level, with 10-PCB and 6-PCB as the main components, indicating that the PCBs that are difficult to volatilise and degrade are more likely to remain in the sediment. The origins of PCBs in the sediments of the Beiluo River were examined by using positive matrix factorisation (PMF). The results revealed that the contamination of PCBs in the sediments of the Beiluo River mainly resulted from industrial emissions, technical PCB mixtures, and coal and wood combustion. The results of the ecological risk assessment indicated that PCBs in the sediments of the study area rarely contribute to adverse biological effects and the potential low risk to the environment. MDPI 2023-01-31 /pmc/articles/PMC9958545/ /pubmed/36851013 http://dx.doi.org/10.3390/toxics11020139 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Han, Linrong Chang, Chao Yan, Shiwei Qu, Chengkai Tian, Yulu Guo, Jipu Guo, Jiahua Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Sediments from Beiluo River |
title | Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Sediments from Beiluo River |
title_full | Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Sediments from Beiluo River |
title_fullStr | Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Sediments from Beiluo River |
title_full_unstemmed | Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Sediments from Beiluo River |
title_short | Distribution, Sources and Risk Assessment of Polychlorinated Biphenyls in Sediments from Beiluo River |
title_sort | distribution, sources and risk assessment of polychlorinated biphenyls in sediments from beiluo river |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9958545/ https://www.ncbi.nlm.nih.gov/pubmed/36851013 http://dx.doi.org/10.3390/toxics11020139 |
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