Аннотация:The contents of polycyclic aromatic hydrocarbons (PAHs) in the upper horizons of Moscow soils
range up to 1400 mg/kg for individual compounds and up to 10000 mg/kg for their sum. The concentration
coefficients of PAHs in the soil vary from 0.7 to 200 depending on individual polyarene properties and land use.
The heavy polynuclear structures of technogenic origin have the highest concentration coefficients. The highest
accumulation of PAHs is observed for the soils of dumping sites, residential–transport areas, and industrial
zones. According to the state sanitary norms set in the Russian Federation for the content of benzo[a]pyrene in
soils, more than one-third of the urban soils studied are classified as pure, and about half soils are classified as
acceptable.