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Geochemical Anomalies of the Heavy Metals in the Industrial and Urban Agglomeration Soils

Mitryasova Olena, Smyrnov Viktor, Koszelnik Piotr, Salamon Ivan, Smyrnova Svitlana, Mats Andrii

Ecological Engineering & Environmental Technology

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2024

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Vol. 25, iss. 3

165--177

EN

The study of the soil cover of urban landscapes of the Mykolaiv industrial-urban agglomeration, which is a complex multifunctional system, was carried out. A sampling strategy was developed and the sources of pollution were analyzed, taking into account the areas of intensive bombing and ammunition explosions. The levels of contamination by heavy metals (Сr, Zn, Hg, Pb, Ni, Cu, Mn) at the positions of environmental safety were established, and the danger coefficient Ko and the integral danger index (∑Ko (1+2)) were applied for chemical elements of the I and II danger classes. A geochemical anomaly of military origin was identified with an excess of the maximum permissible levels for the following chemical elements: Hg (57.1) > Сr (20.6) > Ni (9.6) > Cu (9.2) > Zn (5.3) > Pb (1.5).

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The Distribution of Heavy Metals Mobile Forms in the Industrial-Urban Agglomeration Soil

Smyrnov Viktor, Mitryasova Olena, Salamon Ivan, Smyrnova Svitlana, Chvyr Vadym, Mats Andrii

Journal of Ecological Engineering

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2023

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Vol. 24, nr 11

303--313

EN

The material is devoted to the distribution of heavy metals mobile forms in the ground cover urban landscapes of the Mykolaiv industrial urban agglomeration, which is a complex multifunctional system. The authors of the research collected soil samples from different places of agglomeration and measured the levels of heavy metals mobile forms in these samples. The purpose is a determination of the heavy metals migration levels in the missile strikes locations by the Russian aggressors. The objectives of the research are developing a strategy for testing the Mykolaiv Urban Industrial Agglomeration (MUIA) soil cover; estimating the migration level of heavy metals (HM) (Cr, Zn, Hg, Pb, Ni, Cu, Mn) of the MUIA soil cover according to the maximum permissible levels. The research data revealed that the HM concentration (Cr, Zn, Hg, Pb, Ni, Cu, Mn) is in three forms - ion exchange, available and fixed. The HM average concentration in the ion exchange form ranges from 0.9 mg/kg for Cr to 60.3 mg/kg for Mn. In available form, the HM average concentration varies from 0.4 mg/kg for Cr to 57.9 mg/kg for Hg. In fixed form, the HM average concentration ranges from 8.7 mg/kg for Cr to 582.9 mg/kg for Mn. The analysis of the study showed that the mobile forms content in soils agglomerations differs significantly depending on the place heavy metals of sampling. In some places, the content of heavy metals exceeds the permissible standards, which can harm on the ecosystem and human health.

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Environmental and Geochemical Parameters of Bottom-Sediment from the Southern Bug Estuary

Mitryasova Olena, Koszelnik Piotr, Gruca-Rokosz Renata, Smyrnov Victor, Smyrnova Svitlana, Kida Małgorzata, Ziembowicz Sabina, Bezsonov Yevhen, Mats Andrii

Journal of Ecological Engineering

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2021

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Vol. 22, nr 2

244--255

EN

The bottom sediments of river hydroecosystems were studied for the gross content of heavy metals (K, Ti Cr, Fe, Ni, Cu, Zn, Rb, Sr and Hg). The environmental and geochemical processes of bottom-sediment formation in aqua landscapes were analyzed, allowing us to stress the need to determine the methodological basis for the correlation-regression dependence of the heavy metal accumulation processes in bottom sediments, as well as total content of organic carbon. The ranking of pairwise correlation coefficients arranged in decreasing order is: TOC:Cu (0.87) >TOC:K (0.82) >TOC: Ni (0.75) > TOC:Sr (0.73) > TOC:Fe, (0.7) >TOC:Ti (0.67) > TOC:Hg (0.63) > TOC: Cr (0.58) >TOC:Rb (0.56) > and TOC:Zn (0.51). The proposed methodological approach determines the environmental and geochemical aspects of the sedimentation processes heavy metals, while also identifying the general trends in hydroecosystems prone to the anthropogenic impact.