As a result of the Chornobyl Nuclear Power Plant accident, significant areas of Ukrainian Polissya were exposed to radioactive contamination. Therefore, the global problem in forest ecosystems is the rehabilitation of radioactively contaminated lands and the preservation and restoration of soils. With the first atmospheric radiotoxins, soil and plants were exposed to powerful radiation from ‘hot particles’. Woody vegetation has a higher capacity to retain radioactive fallout than herbaceous vegetation. This is due to the large biomass of crowns. Extremely large area of foliage cover. Therefore, the tree layer acts as a kind of filter that retains radionuclides. The cycle of absorption and release of radioisotopes from the soil into plants and vice versa began. Soon after the disaster, plants and fungi in the contaminated areas began to concentrate radionuclides, absorbing them from the soil through their roots and transferring them to other parts of the plant. The aim of the study was to obtain the results of the current radiological, toxicological and agrochemical state of forest soils on the example of the territory of the state enterprise «Korosten Forestry» and Agroindustrial Complex of the Zhytomyr Regional Municipal Agroforestry Enterprise «Zhytomyroblagrolis» of the Zhytomyr Regional Council (here and after Korosten Forestry). To obtain practical implications for the further monitoring system in forest ecosystems, which can serve as a basis for creating an appropriate database on the state of forest pollution in the Zhytomyr Polissya region. The research was carried out using general methods and research techniques. The research proved that the territory of the state enterprise Korosten Forestry, which were contaminated as a result of the Chornobyl accident, are characterised by uneven radiological contamination of soils with uneven distribution.