| Abstrakt: |
Soil environmental condition was studied in seven popular recreational zones, which are dispersed across the city of Moscow: Losiny Ostrov National Park, Victory Park on Poklonnaya Gora, Ostankino Estate Park, Sokolniki Culture and Recreation Park, Izmailovo Culture and Recreation Park, Kuzminki–Lyublino Nature and Historical Park, and the Museum and Nature Reserve Tsaritsyno. Soil samples were collected in the summer of 2018 at three locations within each park. The samples were tested for 38 chemical elements: Na, Si, Al, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, As, Br, Rb, Sr, Mo, Sb, Cs, Ba, La, Ce, Nd, Sm, Eu, Tb, Tm, Yb, Hf, W, Au, Th, U, Cd, Pb, and Cu. The testing methods were neutron activation analysis and atomic absorption spectrometry. Sanitary–hygienic and ecological–geochemical assessment of the soils revealed minor exceedances in the tentative approximate concentrations of the elements of hazard class 1 (As, Cd, Zn). The categories of soil pollution were established by calculating the total pollution index. A moderately hazardous category of soil pollution by elements of hazard classes 1-3 has been found at the parks of Sokolniki, Izmailovo and Victory Park on Poklonnaya Gora. Taking into account all trace elements, the total pollution indicator shows that more than 50% of the studied sites belong to the hazardous category of pollution. Sb, Th, Tb, Cs, and Hf make a significant contribution to the current state. The highest pollution was detected in soil samples taken on the territory of the Eastern Administrative District, which includes Sokolniki and Izmailovo. [ABSTRACT FROM AUTHOR] |
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