Assessment of technogenic pollution by silver compounds on the biological properties of the soil (model experiment)
Introduction: Silver (Ag) has increasingly become one of the priority pollutants of soils, which is accompanied by a number of consequences for humans and soil biota. To fully assess the effects of the entry of different chemical forms of Ag into soils, it is necessary to conduct experiments with...
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Tehran University of Medical Sciences
2024-12-01
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| Series: | Journal of Air Pollution and Health |
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| Online Access: | https://japh.tums.ac.ir/index.php/japh/article/view/817 |
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| author | Tatiana Minnikova Natalia Tsepina Sergey Kolesnikov Natalia Evstegneeva Anna Kusina |
| author_facet | Tatiana Minnikova Natalia Tsepina Sergey Kolesnikov Natalia Evstegneeva Anna Kusina |
| author_sort | Tatiana Minnikova |
| collection | DOAJ |
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Introduction: Silver (Ag) has increasingly become one of the priority pollutants of soils, which is accompanied by a number of consequences for humans and soil biota. To fully assess the effects of the entry of different
chemical forms of Ag into soils, it is necessary to conduct experiments with different types of soils, different exposure periods, as well as a wide range of biological indicators. The purpose of the study is to assess technogenic pollution by silver compounds (silver oxide (Ag2O) and nitrate (AgNO3)) onthe biological properties of the soil in model experiment of the soil in a model experiment, followed by the use of the data obtained in the normalization of the Ag content in the soil.
Materials and methods: The effect of Ag2O and AgNO3 was investigated in specific permissible concentrations of biological indicators of the state of Haplic Chernozems Calcic (HCC), Haplic Cambisols Eutric (HCE) and Haplic Arenosols Eutric (HAE). Ecotoxicity was assessed by the degree of changes in the indicators of enzymatic activity, microbiological and phytotoxic indicators of soils 10, 30 and 90 days after contamination. Activity of catalase it was determined gasometrically, dehydrogenases, peroxidase, polyphenoloxidase, ferrireductase, ascorbatoxidase, phosphatase, invertase, urease, protease was determined photocolorimetrically, the total number of bacteria by luminescent method, Azotobacter sp. abundance by the method of fouling lumps on the Ashby medium, length of shoots and roots of wheat (Triticum aestivum L.) morphometrically.
Results: It was revealed that Ag ecotoxicity was determined by the content of Ag in the soil, its form, the period from the moment of contamination and soil type. In most cases, AgNO3 had a stronger ecotoxic effect on biological parameters. Phosphatase activity and number of soil bacteria are the most sensitive indicators. The activity of invertase, urease, dehydrogenases and Azotobacter sp. abundance are the most informative indicators.
Conclusion: Abundance is the most informative indicator. The results obtained to assess the ecotoxicity of soils contaminated with Ag, as well as the identified sensitive and informative indicators, can be used for diagnosis and as an indicator of the ecological state of soils.
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| format | Article |
| id | doaj-art-23522ea023964703ae9f1280f33f0ca0 |
| institution | Kabale University |
| issn | 2476-3071 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Tehran University of Medical Sciences |
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| series | Journal of Air Pollution and Health |
| spelling | doaj-art-23522ea023964703ae9f1280f33f0ca02025-02-09T09:03:18ZengTehran University of Medical SciencesJournal of Air Pollution and Health2476-30712024-12-019410.18502/japh.v9i4.17651Assessment of technogenic pollution by silver compounds on the biological properties of the soil (model experiment)Tatiana Minnikova0Natalia Tsepina1Sergey Kolesnikov2Natalia Evstegneeva3Anna Kusina4Department of Ecology and Nature Management, Academy of Biology and Biotechnology, Southern Federal University, Rostov on Done, RussiaDepartment of Ecology and Nature Management, Academy of Biology and Biotechnology, Southern Federal University, Rostov on Done, RussiaDepartment of Ecology and Nature Management, Academy of Biology and Biotechnology, Southern Federal University, Rostov on Done, RussiaDepartment of Ecology and Nature Management, Academy of Biology and Biotechnology, Southern Federal University, Rostov on Done, RussiaDepartment of Ecology and Nature Management, Academy of Biology and Biotechnology, Southern Federal University, Rostov on Done, Russia Introduction: Silver (Ag) has increasingly become one of the priority pollutants of soils, which is accompanied by a number of consequences for humans and soil biota. To fully assess the effects of the entry of different chemical forms of Ag into soils, it is necessary to conduct experiments with different types of soils, different exposure periods, as well as a wide range of biological indicators. The purpose of the study is to assess technogenic pollution by silver compounds (silver oxide (Ag2O) and nitrate (AgNO3)) onthe biological properties of the soil in model experiment of the soil in a model experiment, followed by the use of the data obtained in the normalization of the Ag content in the soil. Materials and methods: The effect of Ag2O and AgNO3 was investigated in specific permissible concentrations of biological indicators of the state of Haplic Chernozems Calcic (HCC), Haplic Cambisols Eutric (HCE) and Haplic Arenosols Eutric (HAE). Ecotoxicity was assessed by the degree of changes in the indicators of enzymatic activity, microbiological and phytotoxic indicators of soils 10, 30 and 90 days after contamination. Activity of catalase it was determined gasometrically, dehydrogenases, peroxidase, polyphenoloxidase, ferrireductase, ascorbatoxidase, phosphatase, invertase, urease, protease was determined photocolorimetrically, the total number of bacteria by luminescent method, Azotobacter sp. abundance by the method of fouling lumps on the Ashby medium, length of shoots and roots of wheat (Triticum aestivum L.) morphometrically. Results: It was revealed that Ag ecotoxicity was determined by the content of Ag in the soil, its form, the period from the moment of contamination and soil type. In most cases, AgNO3 had a stronger ecotoxic effect on biological parameters. Phosphatase activity and number of soil bacteria are the most sensitive indicators. The activity of invertase, urease, dehydrogenases and Azotobacter sp. abundance are the most informative indicators. Conclusion: Abundance is the most informative indicator. The results obtained to assess the ecotoxicity of soils contaminated with Ag, as well as the identified sensitive and informative indicators, can be used for diagnosis and as an indicator of the ecological state of soils. https://japh.tums.ac.ir/index.php/japh/article/view/817Soil Pollution; Silver nitrates; Silver oxide; Ecotoxicity; Sensitive indicator |
| spellingShingle | Tatiana Minnikova Natalia Tsepina Sergey Kolesnikov Natalia Evstegneeva Anna Kusina Assessment of technogenic pollution by silver compounds on the biological properties of the soil (model experiment) Journal of Air Pollution and Health Soil Pollution; Silver nitrates; Silver oxide; Ecotoxicity; Sensitive indicator |
| title | Assessment of technogenic pollution by silver compounds on the biological properties of the soil (model experiment) |
| title_full | Assessment of technogenic pollution by silver compounds on the biological properties of the soil (model experiment) |
| title_fullStr | Assessment of technogenic pollution by silver compounds on the biological properties of the soil (model experiment) |
| title_full_unstemmed | Assessment of technogenic pollution by silver compounds on the biological properties of the soil (model experiment) |
| title_short | Assessment of technogenic pollution by silver compounds on the biological properties of the soil (model experiment) |
| title_sort | assessment of technogenic pollution by silver compounds on the biological properties of the soil model experiment |
| topic | Soil Pollution; Silver nitrates; Silver oxide; Ecotoxicity; Sensitive indicator |
| url | https://japh.tums.ac.ir/index.php/japh/article/view/817 |
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