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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...

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Autores principales: Lai, Zini, Li, Xiuli, Li, Haiyan, Zhao, Lina, Zeng, Yanyi, Wang, Chao, Gao, Yuan, Liu, Qianfu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2015
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.
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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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