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EGC-01 General contributions to environmental geochemistry
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Study on PAHs contents and sources in surface soils of Huizhou city, south China: Based on multivariate statistics analysis
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Jin Ma, Center for Earth Environment and Resources, Sun Yat-sen University (China)
Yong-zhang Zhuo, Center for Earth Environment and Resources, Sun Yat-sen University (China)
Hong-fu Wan, Center for Earth Environment and Resources, Sun Yat-sen University (China)
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The study of Polycyclic Aromatic Hydrocarbons (PAHs) in surface soils was conducted in Huizhou city, which located in the Pearl River Delta, south China. 16 PAHs in 42 soil samples were detected. The results showed that 4 components of PAHs were detectable in all soil samples, and other 12 components were also detectable in different degrees. The total PAHs contents ranged from 35.40 to 534.5ug/kg with the mean value of 123.09ug/kg. Soils in Huizhou were polluted by PAHs lightly according to Maliszewska-Kordybach's study. It can be confirmed that the increase of PAHs contents in surface soils of Huizhou city is connected to human activities closely. multivariate analysis was also made in this study.
Principal Component Analysis was used to analysis the origins, and 3 PCs were extracted. The results show that the major contribution of PAHs was coal combustion and oil spill. At last, cluster analysis was made and 16 priority PAHs were classified to 4 sorts, and the result revealed the differences of environmental behavior , chemic-characters and sources of PAHs.
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