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Source Analysis of Polycyclic Aromatic Hydrocarbons in Fushun Section of Hunhe River Based on Principal Component Analysis
Abstract: As the degree of urbanization increases, it has a negative impact on the ecological environment. Polycyclic aromatic hydrocarbons (PAHs), which are hard to degrade, exist in the rivers and soil environment, posing a certain threat to the residents' health. In this paper, the Fushun section of the Fushun River and the new city of Fushun were selected as the study area. The PAHs were analyzed by the method of isomer ratio and principal component analysis. The results showed that PAHs in both wet and dry river water sources were all from The PAHs sources in the wet season were partly oil input. The sources of PAHs in surface soil of both wet and dry seasons in Shen-Fu new city included both the mixture source of oil leakage and atmospheric deposition, the mixture source of oil leakage and diesel combustion and the mixed sources of coal combustion and vehicle emissions. The difference lies in the sources of PAHs in wet season including diesel combustion sources. Comparing the two methods, the results obtained by principal component analysis are more specific and provide the theoretical basis for the related research.
Key words: PAHs; isomer ratio method; principal component analysis; dry and wet seasons