Distribution Characteristics of PAHs in the Multimedia of the Terrestrial Environmental in Busan

In this research, 16 US-EPA priority PAHs were analyzed to identify their concentrations and congener distribution profiles of various media in Busan. Samples were collected from the major terrestrial media: freshwater (18 points), soil (20 points), and pine needle (12 points). The levels of ??16PAHs in soil, water, and pine needle samples ranged from 0.027 to 2,071 ??g/kg dw (mean: 113.9 ??g/kg dw), 25.1 to 2,665 ng/L (mean: 201ng/L), and 0.680 to 87.05 ??g/kg (mean: 9.981 ??g/kg), respectively. Different levels and patterns of PAHs were observed with the land use of sampling sites. PAH profiles were compared by principal component analysis (PCA) and diagnostic ratios to observe the influences of various pollution sources. Heavily contaminated sites were directly influenced by different pollution sources. For example, more contaminated soil samples had petrogenic PAHs mostly, whereas highly contaminated pine needle samples contained pyrogenic PAHs. This research could give useful basic data and appropriate analysis procedures of multimedia for probabilistic exposure assessment of organic pollutants in Korea.clos