title: Source apportionment of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of the Huangpu River, Shanghai, China.
abstract: We applied cluster analysis and principal component analysis (PCA) with multivariate linear regression (MLR) to apportion sources of polycyclic aromatic hydrocarbons (PAHs) in surface sediments of the Huangpu River in Shanghai, China, based on the measured PAH concentrations of 32 samples collected at eight sites in four seasons in 2006. The results indicate that petrogenic and pyrogenic sources are the important sources of PAHs. Further analysis shows that the contributions of coal combustion, traffic-related pollution and spills of oil products (petrogenic) are 40%, 36% and 24% using PCA/MLR, respectively. Pyrogenic sources (coal combustion and traffic related pollution) contribute 76% of anthropogenic PAHs to sediments, which indicates that energy consumption is a predominant factor of PAH pollution in Shanghai. Rainfall, the monsoon and temperature play important roles in the distinct seasonal variation of PAH pollution, such that the contamination level of PAHs in spring is significantly higher than in the other seasons. BRIEF: We apportion PAHs in surface sediments of the Huangpu River and show that coal combustion, traffic-related pollution, and petroleum spillage are the major sources.
authors.affiliation: State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Liu
authors.forename: Ling
authors.initials: L
authors.lastname: Chen
authors.forename: Qing-Hui
authors.initials: QH
authors.lastname: Huang
authors.forename: Wei-Ying
authors.initials: WY
authors.lastname: Li
authors.forename: Yin-Jian
authors.initials: YJ
authors.lastname: Tang
authors.forename: Jian-Fu
authors.initials: JF
authors.lastname: Zhao
mesh_terms: D002681:China; D016000:Cluster Analysis; D003031:Coal; D004787:Environmental Pollution / Q000032:analysis*; D019015:Geologic Sediments / Q000737:chemistry*; D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000737:chemistry; D025341:Principal Component Analysis; D011891:Rain; D012044:Regression Analysis; D045483:Rivers / Q000737:chemistry*; D012621:Seasons; D013696:Temperature; D001335:Vehicle Emissions; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry
chemical_list: D003031:Coal; D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons; D001335:Vehicle Emissions; D014874:Water Pollutants, Chemical