Research on the Analysis of Unregulated Organic Pollutant Compounds in Soil (Focusing on 16 Polycyclic Aromatic Hydrocarbons)
The aim of study was to investigate polluted amounts 16 PAHs in railroad(waste railway ties) area, factory area and land-fill area. All of the samples were analyzed by GC-MSD(SIM mode), and the recovery range, detection limit and standard deviation obtained by this experiment were 73.88 ~ 94.75%, 0.009 ~ 2.252 μg/kg and 1.861 ~ 12.373, respectively. The concentrations of total PAHs(t-PAHs) and total carcinogenic PAHs(t-PAHcarc) in soils of three area were in the range of 12.54 ~ 3274.95 μg/kg on a wet weight basis with a mean value of 499.8 μg/kg and 0 ~122.77 μg/kg with a mean value of 20.16 μg/kg, respectively. The correlation between t-PAHs and t-PAHcarc appeared very high in railroad(waste railway ties) area (R2 = 0.8301), factory area (R2 = 0.9217) except land-fill area(R2 = 0.3782), indicated that t-PAHcarc concentration increases in proportion with t-PAHs.