Levels, sources and potential risks of polycyclic aromatic hydrocarbons (PAHs) in multimedia environment along the Jinjiang River mainstream to Quanzhou Bay, China

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• 作者：Dan Yang ; Shihua Qi ; Yuan Zhang ; Xinli Xing ; Hongxia Liu ; Chengkai Qu ; Jia Liu ; Feng Li
• 关键词：Polycyclic aromatic hydrocarbons (PAHs) ; Multimedia ; Quanzhou Bay ; Positive matrix factorization (PMF) ; Toxic equivalent quantity (TEQ) ; Sediment quality guideline quotient (SQGQ)
• 刊名：Marine Pollution Bulletin
• 出版年：15 November, 2013
• 年：2013
• 卷：76
• 期：1-2
• 页码：298-306
• 全文大小：634 K

文摘

This study investigated the levels, sources and potential risks of polycyclic aromatic hydrocarbons (PAHs) in soil, water (dissolved phase, suspended particulate matter) and sediment along the Jinjiang River mainstream to Quanzhou Bay. The distribution coefficient of 危PAHs varied disorderly along the Jinjiang River, indicating the non-equilibrium status for the partition. The various distribution features of 危PAHs in the sediments of the north and south coast of Quanzhou Bay were probably due to the flow motions in the bay. High correlations of PAHs were found between different media, suggesting the approximately same source of PAHs. Furthermore, three source factors and their contributions were extracted using the positive matrix factorization model. Toxicity and biological risk were assessed using toxic equivalent quantity and sediment quality guideline quotient. The contamination of PAHs in the soil and sediments may turn to unconspicuous risks for the environment and humans except very few sites with moderate pollution.