摘要:This paper deals with iron, manganese and chromium concentration in plants from three experimental fields with ponds, located in different places with different vegetation around. The following plants were tested: Potentilla anserina L., Mentha arvensis, Achillea millefolium L., Comarum palustre L., Lysimachia vulgaris L. and Lycopus europaeus L. Iron, manganese and chromium concentration was determined with Inductively Coupled Plasma Atomic Emission Spectrometry. In the experiment the highest concentration of iron and chromium was found in Mentha arvensis, while the highest concentration of manganese was in Potentilla anserina L., with Lysimachia vulgaris L. having the lowest concentration of manganese and chromium and with Comarum palustre L. having the lowest concentration of iron. Concerning the moisture sections, the highest concentration of iron and manganese was found in the plants growing in the periodically wet section of the pond area with permanent grasslands, the highest concentration of chromium was in the plants growing in the dry section of the pond area with a cultivated field around. The concentrations of those metals in the soil of those experimental areas, all located in the Siedlce Plateau, show that chemicals and fertilisers used in agriculture has not caused pollution of the soil there.