Multivariate assessment of polycyclic aromatic hydrocarbons in surface sediments of the Beijiang, a tributary of the Pearl River in Southern China
文献类型： 外文期刊
作者： Song, Mingwei 1 ; Gao, Min 1 ; Wang, Panfei 1 ; Xie, Kaizhi 2 ; Zhang, Hui 1 ;
作者机构： 1.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China
2.Guangdong Acad Agr Sci, Inst Agr Resources & Environm, Guangzhou 510640, Guangdong, Peoples R China
3.Sun Yat Sen Univ, Sch Environm Sci & Engn, Dept Environm Sci, Guangzhou 510275, Guangdong, Peoples R China
关键词： PAHs;Sediments;Diagnostic ratio;PCA/MLR;Source apportionment;Beijiang River
期刊名称：ENVIRONMENTAL MONITORING AND ASSESSMENT （ 影响因子：2.513； 五年影响因子：2.871 ）
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年卷期：
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收录情况： SCI
摘要： To estimate the severity of polycyclic aromatic hydrocarbon (PAH) contamination in the upper sediment of the Beijiang River, 42 sediment samples were analyzed for the presence of 16 key PAHs using gas chromatography-mass spectrometry. The concentrations of PAH in the sediment ranged from 44 to 8,921 ng g~(-1) dry weight. The four- to six-ring PAHs, contributing ＞50 % to PAHs in 34 of the 42 sites, were the dominant species. Based on a principal component analysis, combined with multivariate linear regression, it became clear that the most important contributors of PAH were fossil fuel combustion (48 %), diesel emissions plus oil spillage (33 %), and coke combustion (19 %). The surface sediments of Beijiang River were grossly contaminated by PAHs mainly derived from combustion.
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