Analysis of Distribution and Accumulation of Mobile Forms of Heavy Metals and Arsenic in Soils of the Urbanized Territory of Svirsk (Irkutsk Region)

Abstract

The analysis of heavy metals and arsenic contamination of soils of the urbanized territory of Svirsk (Irkutsk region) is presented. The features of distribution and concentration of mobile forms of elements – toxicants in soils of different functional zones of the city are revealed. It has been established that the main pollutants of the soils of Svirsk are As, Zn, Pb, Cr, Fe and Cd, which have high accumulation rates. Mainly high–contrast polyelement geochemical anomalies Fe–Pb–As–Zn– Cd–Mn and Cu with extremely dangerous pollution levels are formed in the soil cover of industrial zones. The soils of a private residential area are characterized by local contrasting four–element anomalies Zn–As–Cr–Mn with a dangerous and extremely dangerous degree of pollution, multi–storey residential sector – two-element low-contrast anomalies Cr–Cu with a dangerous and moderately dangerous ecological situation.