The purpose of the study is to investigate the effect of various organic and inorganic soil amendments on the degree of purification of soils contaminated with heavy metals (HM). The focus was on biological - "soft" methods in terms of environmental impact, as a way to remediate the soil in situ in order to clean the soil from HM. The scientific novelty of the work is to determine the effectiveness of the use of soil amendments for cleaning soils from HM.