Chemical Composition of Soils and Plants of Urbanized Territories of the Arctic (on the Example of the Municipality of Novy Urengoy)

The assessment of the state of the Arctic urbanized territory environment is given on the basis of the data of changes in the content of metals (Na, Ca, K, Al, Sc, Fe, Mn, Cd, Cr, Cr, Zn, Sr, Cu, Ni, Ba, Pb, Co, V) in soils and plants (bark of Siberian larch Larix sibirica, Ledum decumbens, lichen Cladonia stellaris). The example of Novy Urengoy city shows the role of various types of anthropogenic impact in the pollution of urban environment, which is located in the zone of impact of urban infrastructure facilities, road and rail transport, municipal waste landfills, linear oil and gas transportation facilities. Associations of chemical elements in soils reflecting the predominant impact of motor transport (Cd-Pb-Zn-Cu-Ni) and residential development (Ca-Mn-Co-Sr) were established. Soil toxicity probability index (MERMQ), Nemerov index and total pollution index Zc were calculated, which showed low toxicity of most of the studied soils. The average toxicity of soils near major highways and toxic waste disposal site was noted. Calculations of integral indicators of pollution: LTP (Landscape Total Pollution) and BIP (Bioindication Integral Parameter) on the basis of Harrington's desirability function, which indicate a low level of pollution of the study area, were performed.