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

第一作者： Gao, Min

作者： Gao, Min;Wang, Panfei;Zhang, Hui;Xie, Kaizhi;Zhang, Hui

作者机构：

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 ）

ISSN：

年卷期：

页码：

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.

分类号： X8

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