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The objectives of this study were to investigate the contamination of the soils around the major roadsides in Seoul and to accumulate base-line data. Fifty topsoils (0∼5 ㎝) and 48 subsoils (20∼50 ㎝) were collected from 50 sampling sites near Manguro in Chungnanggu. The samples were air-dried, passed through 2-㎜ sieves, and analyzed to detemune the physicochemical properties and the contents of heavy metals (Cd, Cu, Pb, Zn) and anions (Cl, NO₃, SO₄). Soil textures of top- and subsoils were mainly loamy sand and sandy loam, respectively. Average pH of top- and subsoil was approximately 7.5, much higher than that of the forest soils in Seoul. Average heavy metal contents were lower than the levels allowed by the Soil Environment Conservation Act of Korea, whereas much higher than those of the forest soils. Contents of some heavy metals were higher than the maximum allowed levels. Anion concentrations were also much higher than those of the forest soils. A careful management to prevent the aggravation of the present contamination level and the diffusion of contaminants is recommended.
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