Distribution and source apportionments of polychlorinated biphenyls (PCBs) in mariculture sediments from the Pearl River Delta, South China

Hong sheng Wang; Jun Du; Ho man Leung; Anna Oi Wah Leung; Peng Liang; John P. Giesy; Chris K.C. Wong; Ming Hung Wong

doi:10.1016/j.marpolbul.2011.02.009

Distribution and source apportionments of polychlorinated biphenyls (PCBs) in mariculture sediments from the Pearl River Delta, South China

Hong sheng Wang, Jun Du, Ho man Leung, Anna Oi Wah Leung, Peng Liang, John P. Giesy, Chris K.C. Wong^*, Ming Hung Wong

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

40 Citations (Scopus)

Abstract

Surface and core sediments collected from six mariculture farms in the Pearl River Delta (PRD) were analyzed to evaluate contamination levels of polychlorinated biphenyls (PCBs). The ∑PCBs (37 congeners) concentrations ranged from 5.10 to 11.0ngg^-1 (mean 7.96ngg^-1) in surface and 3.19 to 22.1ngg^-1 (mean 7.75ngg^-1) in core sediments, respectively. The concentrations were significantly higher than that measured in the sediments of their corresponding reference sites, whereby the average enrichment percentages were 62.0% and 42.7% in surface and core sediments, respectively. Significant correlations (R²=0.77, p<0.05) of PCB homologue group proportions between fish feeds and surface mariculture sediments suggested that fish feed input was probably the main source for the enrichment of PCBs. Due to the fact that PCBs could be transferred along food chains, PCB contamination in fish feeds and mariculture sediments should not be overlooked.

Original language	English
Pages (from-to)	516-522
Number of pages	7
Journal	Marine Pollution Bulletin
Volume	63
Issue number	5-12
DOIs	https://doi.org/10.1016/j.marpolbul.2011.02.009
Publication status	Published - 2011

Scopus Subject Areas

Oceanography
Aquatic Science
Pollution

User-Defined Keywords

Enrichment percentage
Fish feed
Mariculture
PCBs

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10.1016/j.marpolbul.2011.02.009

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title = "Distribution and source apportionments of polychlorinated biphenyls (PCBs) in mariculture sediments from the Pearl River Delta, South China",

abstract = "Surface and core sediments collected from six mariculture farms in the Pearl River Delta (PRD) were analyzed to evaluate contamination levels of polychlorinated biphenyls (PCBs). The ∑PCBs (37 congeners) concentrations ranged from 5.10 to 11.0ngg-1 (mean 7.96ngg-1) in surface and 3.19 to 22.1ngg-1 (mean 7.75ngg-1) in core sediments, respectively. The concentrations were significantly higher than that measured in the sediments of their corresponding reference sites, whereby the average enrichment percentages were 62.0% and 42.7% in surface and core sediments, respectively. Significant correlations (R2=0.77, p<0.05) of PCB homologue group proportions between fish feeds and surface mariculture sediments suggested that fish feed input was probably the main source for the enrichment of PCBs. Due to the fact that PCBs could be transferred along food chains, PCB contamination in fish feeds and mariculture sediments should not be overlooked.",

keywords = "Enrichment percentage, Fish feed, Mariculture, PCBs",

author = "Wang, {Hong sheng} and Jun Du and Leung, {Ho man} and {Oi Wah Leung}, Anna and Peng Liang and Giesy, {John P.} and Wong, {Chris K.C.} and Wong, {Ming Hung}",

note = "Funding Information: The authors thank Dr. X.L. Sun and Mr. K.W. Chan for technical assistance. This research was supported by the Research Grants Council of the University Grants Committee of Hong Kong (Collaborative Research Fund, HKBU1/CRF/08 and Special Equipment Grant, HKBU09) and the Mini-AOE (Area of Excellence) Fund from the Hong Kong Baptist University. ",

year = "2011",

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pages = "516--522",

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AU - Wang, Hong sheng

AU - Du, Jun

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AU - Oi Wah Leung, Anna

AU - Liang, Peng

AU - Giesy, John P.

AU - Wong, Chris K.C.

AU - Wong, Ming Hung

N1 - Funding Information: The authors thank Dr. X.L. Sun and Mr. K.W. Chan for technical assistance. This research was supported by the Research Grants Council of the University Grants Committee of Hong Kong (Collaborative Research Fund, HKBU1/CRF/08 and Special Equipment Grant, HKBU09) and the Mini-AOE (Area of Excellence) Fund from the Hong Kong Baptist University.

PY - 2011

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N2 - Surface and core sediments collected from six mariculture farms in the Pearl River Delta (PRD) were analyzed to evaluate contamination levels of polychlorinated biphenyls (PCBs). The ∑PCBs (37 congeners) concentrations ranged from 5.10 to 11.0ngg-1 (mean 7.96ngg-1) in surface and 3.19 to 22.1ngg-1 (mean 7.75ngg-1) in core sediments, respectively. The concentrations were significantly higher than that measured in the sediments of their corresponding reference sites, whereby the average enrichment percentages were 62.0% and 42.7% in surface and core sediments, respectively. Significant correlations (R2=0.77, p<0.05) of PCB homologue group proportions between fish feeds and surface mariculture sediments suggested that fish feed input was probably the main source for the enrichment of PCBs. Due to the fact that PCBs could be transferred along food chains, PCB contamination in fish feeds and mariculture sediments should not be overlooked.

AB - Surface and core sediments collected from six mariculture farms in the Pearl River Delta (PRD) were analyzed to evaluate contamination levels of polychlorinated biphenyls (PCBs). The ∑PCBs (37 congeners) concentrations ranged from 5.10 to 11.0ngg-1 (mean 7.96ngg-1) in surface and 3.19 to 22.1ngg-1 (mean 7.75ngg-1) in core sediments, respectively. The concentrations were significantly higher than that measured in the sediments of their corresponding reference sites, whereby the average enrichment percentages were 62.0% and 42.7% in surface and core sediments, respectively. Significant correlations (R2=0.77, p<0.05) of PCB homologue group proportions between fish feeds and surface mariculture sediments suggested that fish feed input was probably the main source for the enrichment of PCBs. Due to the fact that PCBs could be transferred along food chains, PCB contamination in fish feeds and mariculture sediments should not be overlooked.

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Distribution and source apportionments of polychlorinated biphenyls (PCBs) in mariculture sediments from the Pearl River Delta, South China

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