Аннотация:This review analyzes the present-day problems and expansion pathways of engineered nanomaterials in the environment, particularly in soils and related habitats (water and air). The sources of unintentional and intentional nanoparticle entry (NP entry) into natural systems are discussed. Attention is focused on the problem of bioavailability of engineered nanomaterials in soils due to the high variation in the conditions of a location.