Аннотация:The contents of polycyclic aromatic hydrocarbons (PAHs) in the upper horizons of Moscow-city soils range up to 1400 mg/kg for individual compounds and 10000 mg/kg for their sum. The concentration coefficients of PAHs in the soils range from 0,7 to 200 depending on individual polyarenes properties and landuse type. In PAHs spectrum, the heavy polynuclear structures of basically technogenic origin are characterized by highest concentration coefficients. The soils of garbage storage, residential-transport area and industrial zone come first in accumulation of PAHs. According to state sanitary norms established in the RF for the content of benzo(a)pyrene in soils, just more than one third the urban soils under test are classified as «pure» and about one half the soils are classified as «allowable».