Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal. 2022. № 2(42). P. 64—72
BIOLOGICAL SCIENCES
UDC 574.2:581.5(470.56)
Nazarova Natalia Mikhailovna, Junior researcher
Orenburg State University
THE CONTENT OF HEAVY METALS IN LEAF PLATES OF Syringa vulgaris L. IN CONDITIONS OF INCREASED ANTHROPOGENIC LOAD (ON THE EXAMPLE OF ORENBURG)
Abstract
Among the main factors of degradation of the natural environment, especially urban ecosystems, is its pollution with various pollutants, among which heavy metals (HMs) are of priority importance. In view of this, the relevance of research aimed at studying the ability of plants acting as biological filters in urban conditions to adsorb these pollutants becomes obvious. Within the framework of this study, the concentrations of five HMs (Cu, Zn, Fe, Pb, Cd) in the leaf blades of Syringa vulgaris L. (a species widely used in gardening in Orenburg) were determined using the method of flame atomic absorption. Sampling of leaf blades was carried out in areas of increased anthropogenic load (near major transport arteries of the city). To control HMs indicators, samples were taken from S. vulgaris plants cultivated in the Orenburg State University Botanical Garden. On average, for each district of the city, the concentration of metals is determined lower than at the point of collection of control samples. In a comprehensive assessment of the accumulation of all five HMs in the districts of the city, it was found that Leninsky district of Orenburg is the most favorable in terms of environmental conditions. The most polluted are Promyshlenny and especially Dzerzhinsky districts.
Key words
Syringa vulgaris L., heavy metals, urban environment, bioindication.
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Bibliography link to this article:
Nazarova N. M. The content of heavy metals in leaf plates of Syringa vulgaris L. in conditions of increased anthropogenic load (on the example of Orenburg). Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal, 2022, no. 2 (42), pp. 64—72. DOI: https://doi.org/10.32516/2303-9922.2022.42.6.