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This paper presents Pb concentrations in Poland's soils, in grain of cereal plants, and in roots or tubers of root plants, and examines the spatial distribution of these concentrations. The overall geometric means of Pb concentrations in the soils, cereals, and root plants were 16.4, 0.25 and 0.54 mg/kg, respectively. Spatial distribution of the data revealed that level of Pb in the soils in SW-W...
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