Enrichment of polycyclic aromatic hydrocarbons (PAHs) in mariculture sediments of Hong Kong

Hong Sheng Wang; Peng Liang; Yuan Kang; Ding Ding Shao; Gene J. Zheng; Sheng Chun Wu; Chris K.C. Wong; Ming H. Wong

doi:10.1016/j.envpol.2010.07.022

Enrichment of polycyclic aromatic hydrocarbons (PAHs) in mariculture sediments of Hong Kong

Hong Sheng Wang, Peng Liang, Yuan Kang, Ding Ding Shao, Gene J. Zheng, Sheng Chun Wu, Chris K.C. Wong, Ming H. Wong

Department of Biology

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

49 Citations (Scopus)

Abstract

Surface and core sediments collected from six fish farms in Hong Kong and from reference sites were investigated for the enrichment and sources of polycyclic aromatic hydrocarbons (PAHs). Moderately high ∑PAH₁₆ levels (123-947 ng g^-1, mean: 450 ng g^-1) were found in the surface aquaculture sediments. In comparison with the sediments from the reference sites, the average enrichment percentage of total organic carbon (TOC) and PAHs in surface sediments were 21.4 and 43.8%, respectively, and in the core sediments, 24.6 and 73.7%, respectively. Mathematical source apportionment analyses (i.e. isomer ratios, hierarchical cluster analysis, principal components analysis with multiple linear regression analysis) suggested a higher percentage of petrogenic sources in aquaculture sediments. The fish feeds might be the main source of the enriched PAHs in the aquaculture sediments. To our knowledge, this is the first study showing that PAHs in aquaculture sediments could be attributed to human aquaculture activities.

Original language	English
Pages (from-to)	3298-3308
Number of pages	11
Journal	Environmental Pollution
Volume	158
Issue number	10
DOIs	https://doi.org/10.1016/j.envpol.2010.07.022
Publication status	Published - Oct 2010

Scopus Subject Areas

Toxicology
Pollution
Health, Toxicology and Mutagenesis

User-Defined Keywords

Aquaculture
Enrichment
PAHs
Sediments
Source apportionments
TOC
Vertical distribution

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10.1016/j.envpol.2010.07.022

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title = "Enrichment of polycyclic aromatic hydrocarbons (PAHs) in mariculture sediments of Hong Kong",

abstract = "Surface and core sediments collected from six fish farms in Hong Kong and from reference sites were investigated for the enrichment and sources of polycyclic aromatic hydrocarbons (PAHs). Moderately high ∑PAH16 levels (123-947 ng g-1, mean: 450 ng g-1) were found in the surface aquaculture sediments. In comparison with the sediments from the reference sites, the average enrichment percentage of total organic carbon (TOC) and PAHs in surface sediments were 21.4 and 43.8%, respectively, and in the core sediments, 24.6 and 73.7%, respectively. Mathematical source apportionment analyses (i.e. isomer ratios, hierarchical cluster analysis, principal components analysis with multiple linear regression analysis) suggested a higher percentage of petrogenic sources in aquaculture sediments. The fish feeds might be the main source of the enriched PAHs in the aquaculture sediments. To our knowledge, this is the first study showing that PAHs in aquaculture sediments could be attributed to human aquaculture activities.",

keywords = "Aquaculture, Enrichment, PAHs, Sediments, Source apportionments, TOC, Vertical distribution",

author = "Wang, {Hong Sheng} and Peng Liang and Yuan Kang and Shao, {Ding Ding} and Zheng, {Gene J.} and Wu, {Sheng Chun} and Wong, {Chris K.C.} and Wong, {Ming H.}",

note = "Funding Information: The authors thank Dr. X. L. Sun and Dr. H. M. Leung for technical assistance and Dr. A.O.W. Leung for improving the manuscript. 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 ), the Super FRG (FSRS/07/08/02)/HKBU and the Mini-AOE (Area of Excellence) Fund from the Hong Kong Baptist University . ",

year = "2010",

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doi = "10.1016/j.envpol.2010.07.022",

language = "English",

volume = "158",

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AU - Wang, Hong Sheng

AU - Liang, Peng

AU - Kang, Yuan

AU - Shao, Ding Ding

AU - Zheng, Gene J.

AU - Wu, Sheng Chun

AU - Wong, Chris K.C.

AU - Wong, Ming H.

N1 - Funding Information: The authors thank Dr. X. L. Sun and Dr. H. M. Leung for technical assistance and Dr. A.O.W. Leung for improving the manuscript. 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 ), the Super FRG (FSRS/07/08/02)/HKBU and the Mini-AOE (Area of Excellence) Fund from the Hong Kong Baptist University .

PY - 2010/10

Y1 - 2010/10

N2 - Surface and core sediments collected from six fish farms in Hong Kong and from reference sites were investigated for the enrichment and sources of polycyclic aromatic hydrocarbons (PAHs). Moderately high ∑PAH16 levels (123-947 ng g-1, mean: 450 ng g-1) were found in the surface aquaculture sediments. In comparison with the sediments from the reference sites, the average enrichment percentage of total organic carbon (TOC) and PAHs in surface sediments were 21.4 and 43.8%, respectively, and in the core sediments, 24.6 and 73.7%, respectively. Mathematical source apportionment analyses (i.e. isomer ratios, hierarchical cluster analysis, principal components analysis with multiple linear regression analysis) suggested a higher percentage of petrogenic sources in aquaculture sediments. The fish feeds might be the main source of the enriched PAHs in the aquaculture sediments. To our knowledge, this is the first study showing that PAHs in aquaculture sediments could be attributed to human aquaculture activities.

AB - Surface and core sediments collected from six fish farms in Hong Kong and from reference sites were investigated for the enrichment and sources of polycyclic aromatic hydrocarbons (PAHs). Moderately high ∑PAH16 levels (123-947 ng g-1, mean: 450 ng g-1) were found in the surface aquaculture sediments. In comparison with the sediments from the reference sites, the average enrichment percentage of total organic carbon (TOC) and PAHs in surface sediments were 21.4 and 43.8%, respectively, and in the core sediments, 24.6 and 73.7%, respectively. Mathematical source apportionment analyses (i.e. isomer ratios, hierarchical cluster analysis, principal components analysis with multiple linear regression analysis) suggested a higher percentage of petrogenic sources in aquaculture sediments. The fish feeds might be the main source of the enriched PAHs in the aquaculture sediments. To our knowledge, this is the first study showing that PAHs in aquaculture sediments could be attributed to human aquaculture activities.

KW - Aquaculture

KW - Enrichment

KW - PAHs

KW - Sediments

KW - Source apportionments

KW - TOC

KW - Vertical distribution

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JO - Environmental Pollution

JF - Environmental Pollution

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ER -

Enrichment of polycyclic aromatic hydrocarbons (PAHs) in mariculture sediments of Hong Kong

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