title: A study of polycyclic aromatic hydrocarbons concentrations and source identifications by methods of diagnostic ratio and principal component analysis at Taichung chemical Harbor near Taiwan Strait.
abstract: Fine (PM(2.5)) and Coarse (PM(2.5-10)) particulates concentrations of ambient air particle-bound polycyclic aromatic hydrocarbons (PAHs) were measured simultaneously from February 2004 to January 2005 at the Taichung Harbor (TH) sampling site near Taiwan of central Taiwan. Particle-bound polycyclic aromatic hydrocarbons (PAHs) were collected on quartz filters, the collected sample used soxhlet analytical method extracted with a dichloromethane (DCM)/n-hexane mixture (50/50, v/v) for 24h, and then the extracts were subjected to gas chromatography-mass spectrometric (GC-MS) analysis. The results indicated that vehicle emissions, coal combustion, incomplete combustion and pyrolysis of fuel and oil burning were the main source of PAHs near Taiwan Strait of central Taiwan. Diagnostic ratio and principal component analysis (PCA) were also used to characterize and identify PAHs emission source in this study.
authors.affiliation: Air Toxic and Environmental Analysis Laboratory, Hungkuang University, Sha-Lu, Taichung 433, Taiwan. gcfang@sunrise.hk.edu.tw
authors.forename: Guor-Cheng
authors.initials: GC
authors.lastname: Fang
authors.forename: Yuh-Shen
authors.initials: YS
authors.lastname: Wu
authors.forename: Cheng-Nan
authors.initials: CN
authors.lastname: Chang
authors.forename: Tse-Tsung
authors.initials: TT
authors.lastname: Ho
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D004391:Dust / Q000032:analysis*; D004784:Environmental Monitoring; D007220:Industrial Waste; D010316:Particle Size; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D011210:Power Plants; D025341:Principal Component Analysis; D013624:Taiwan; D001335:Vehicle Emissions
chemical_list: D000393:Air Pollutants; D004391:Dust; D007220:Industrial Waste; D011084:Polycyclic Aromatic Hydrocarbons; D001335:Vehicle Emissions