Poorly studied potentially dangerous elements in soils of urban areas in the South of Primorye. E.A. ZHARIKOVA

Abstract

Poorly studied potentially dangerous elements in soils of urban areas in the South of Primorye. E.A. ZHARIKOVA (Federal Scientific Center of the East Asia Terrestrial Biodiversity, FEB RAS, Vladivostok).

The content and vertical distribution of Rb, Sr, Zr, Nb, La, Y, Sc in the soils of Vladivostok and Ussuriysk was reviewed. The quantity of the majority of the studied heavy metals in urban soils exceeds their content in the soils of Primorye reserves and clarks in soils. The elevated concentrations (compared to a soil-forming material) of strontium, scandium and zirconium (in Ussuriysk) were revealed in the surface horizons. The content of Sc and La exceeds the clarks of the lithosphere, the soils of the world and the soils of cities. Urban soils are sources of secondary pollution of the adjoining environments.