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Residual Distribution and Risk Assessment of Polychlorinated Biphenyls in Surface Sediments of the Pearl River Delta, South China
We analyzed residual PCBs in surface sediments at 19 sites in the Pearl River Delta in the wet and dry seasons. Seven indicative PCB congeners (PCB28, PCB52, PCB101, PCB118, PCB153, PCB138 and PCB180) were detected in the surface sediments, among which the detection rate and mass concentrations of P...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4457915/ https://www.ncbi.nlm.nih.gov/pubmed/26017623 http://dx.doi.org/10.1007/s00128-015-1563-z |
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author | Lai, Zini Li, Xiuli Li, Haiyan Zhao, Lina Zeng, Yanyi Wang, Chao Gao, Yuan Liu, Qianfu |
author_facet | Lai, Zini Li, Xiuli Li, Haiyan Zhao, Lina Zeng, Yanyi Wang, Chao Gao, Yuan Liu, Qianfu |
author_sort | Lai, Zini |
collection | PubMed |
description | We analyzed residual PCBs in surface sediments at 19 sites in the Pearl River Delta in the wet and dry seasons. Seven indicative PCB congeners (PCB28, PCB52, PCB101, PCB118, PCB153, PCB138 and PCB180) were detected in the surface sediments, among which the detection rate and mass concentrations of PCB52 were the highest. Total concentrations of the seven PCBs ranged from 19.8 to 111 μg/kg, with an average of 48.2 μg/kg. For the spatial distribution, the sum of the seven PCB (∑PCB) concentrations for the stations that were located in the city region of the Pearl River Delta were significantly higher than the ∑PCB concentrations for the eight outlets of the Pearl River Delta (p < 0.05). According to the US National Oceanic and Atmospheric Administration ERL and ERM guideline concentrations, the PCB concentrations may occasionally lead to adverse effects, especially in the dry season. |
format | Online Article Text |
id | pubmed-4457915 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-44579152015-06-11 Residual Distribution and Risk Assessment of Polychlorinated Biphenyls in Surface Sediments of the Pearl River Delta, South China Lai, Zini Li, Xiuli Li, Haiyan Zhao, Lina Zeng, Yanyi Wang, Chao Gao, Yuan Liu, Qianfu Bull Environ Contam Toxicol Article We analyzed residual PCBs in surface sediments at 19 sites in the Pearl River Delta in the wet and dry seasons. Seven indicative PCB congeners (PCB28, PCB52, PCB101, PCB118, PCB153, PCB138 and PCB180) were detected in the surface sediments, among which the detection rate and mass concentrations of PCB52 were the highest. Total concentrations of the seven PCBs ranged from 19.8 to 111 μg/kg, with an average of 48.2 μg/kg. For the spatial distribution, the sum of the seven PCB (∑PCB) concentrations for the stations that were located in the city region of the Pearl River Delta were significantly higher than the ∑PCB concentrations for the eight outlets of the Pearl River Delta (p < 0.05). According to the US National Oceanic and Atmospheric Administration ERL and ERM guideline concentrations, the PCB concentrations may occasionally lead to adverse effects, especially in the dry season. Springer US 2015-05-28 2015 /pmc/articles/PMC4457915/ /pubmed/26017623 http://dx.doi.org/10.1007/s00128-015-1563-z Text en © The Author(s) 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Article Lai, Zini Li, Xiuli Li, Haiyan Zhao, Lina Zeng, Yanyi Wang, Chao Gao, Yuan Liu, Qianfu Residual Distribution and Risk Assessment of Polychlorinated Biphenyls in Surface Sediments of the Pearl River Delta, South China |
title | Residual Distribution and Risk Assessment of Polychlorinated Biphenyls in Surface Sediments of the Pearl River Delta, South China |
title_full | Residual Distribution and Risk Assessment of Polychlorinated Biphenyls in Surface Sediments of the Pearl River Delta, South China |
title_fullStr | Residual Distribution and Risk Assessment of Polychlorinated Biphenyls in Surface Sediments of the Pearl River Delta, South China |
title_full_unstemmed | Residual Distribution and Risk Assessment of Polychlorinated Biphenyls in Surface Sediments of the Pearl River Delta, South China |
title_short | Residual Distribution and Risk Assessment of Polychlorinated Biphenyls in Surface Sediments of the Pearl River Delta, South China |
title_sort | residual distribution and risk assessment of polychlorinated biphenyls in surface sediments of the pearl river delta, south china |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4457915/ https://www.ncbi.nlm.nih.gov/pubmed/26017623 http://dx.doi.org/10.1007/s00128-015-1563-z |
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