Distribution, sources and ecological risk assessment of PAHs in surface sediments from the Luan River Estuary, China

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• 作者：Daolai Zhang^a ; ^b ; ^c ; ^{zhangdaolai1984@163.com" class="auth_mail" title="E-mail the corresponding author} ; Jinqing Liu^a ; ^b ; ^c ; Xuejun Jiang^b ; ^c ; Ke Cao^b ; ^c ; Ping Yin^b ; ^c ; Xunhua Zhang^b ; ^c
• 关键词：PAHs ; Sediment ; Pollution ; Source ; Ecological risk assessment ; Luan River Estuary
• 刊名：Marine Pollution Bulletin
• 出版年：2016
• 出版时间：15 January 2016
• 年：2016
• 卷：102
• 期：1
• 页码：223-229
• 全文大小：712 K

文摘

The distribution, sources and risk assessment of 16 polycyclic aromatic hydrocarbons (PAHs) of surface sediments in the Luan River Estuary, China, have been investigated in the research. The results indicated that the total concentrations of 16 PAHs in surface sediments of the Luan River Estuary ranged from 5.1 to 545.1 ng g^− 1 dw with a mean value of 120.8 ng g^− 1 dw, which is relatively low in comparison with other estuaries around the world. The PAHs in the study area were mainly originated from pyrogenic sources. Besides, PAHs may be contaminated by petrogenic PAHs as indicated by the selected ratios of PAHs, the 2-tailed Pearson correlation analysis and principal components analysis at different sites. The result of the ecological risk assessment shows little negative effect for most individual PAHs in surface sediments of the Luan River Estuary, China.