Results of lead and cadmium contents in soil adjacent to European highway E30 in the East of Poland were presented in the study. Soil samples were collected at three distances: 0, 50, and 100 m from the track, and at two depths: 5-15 cm and 35-45 cm. Soil pH, content of silt and clay particles, organic matter content, types of underlaying rock and land use methods were tested. The total contents of lead and cadmium were analyzed by AAS method. Lead content ranged from 9.70 mg・kg⁻¹ to 155.75 mg・kg⁻¹ of dry matter (on average 103.38 mg・kg⁻¹) in the strip directly adjacent to the roadside. The values were significantly larger than those from further distances. The lead content in soils beyond the road strip did not exceed the limit value of 100 mg・kg⁻¹ in soil used for farming purposes. The cadmium content, however, ranged from 0.016 to 0.909 mg・kg⁻¹, and it did not significantly depended on the distance from the road. The largest cadmium content, significantly different from others, in soils located to the east of the industrial district of Siedlce was proved, but the content did not exceed the limit of 1 mg・kg⁻¹ in soil of agricultural area. The study was a part of complex research concerning the environmental monitoring that was conducted by co-authors of the paper.
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