Heavy Metals in Glaciers and River Water of the Basin of the Bezengi Cherek River During Intense Graciation Degradation
Introduction. Glaciers in mountainous areas are accumulators of atmospheric moisture and at the same time one of the main sources of food for the main rivers of the Caucasus and are promising sources of fresh water. This is especially true for the rivers of the basin of the largest glaciation unit -...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | Russian |
| Published: |
North-Caucasus Federal University
2022-10-01
|
| Series: | Наука. Инновации. Технологии |
| Subjects: | |
| Online Access: | https://scienceit.elpub.ru/jour/article/view/589 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849388055331340288 |
|---|---|
| author | A. M. Kerimov O. А. Kurasheva |
| author_facet | A. M. Kerimov O. А. Kurasheva |
| author_sort | A. M. Kerimov |
| collection | DOAJ |
| description | Introduction. Glaciers in mountainous areas are accumulators of atmospheric moisture and at the same time one of the main sources of food for the main rivers of the Caucasus and are promising sources of fresh water. This is especially true for the rivers of the basin of the largest glaciation unit - Bezengi. But besides the shortage of fresh water, there is another problem: its quality. Purpose of the work: to give a spatial and temporal characteristic of the distribution of the concentration of heavy metals (HM) in the Bezengi and Mizhirgi glaciers, as well as in the river. Cherek Bezengi in the period from the beginning of the XXI century.Materials and methods of research. In this work, a comparative analysis of the concentrations of HM contained in glaciers and river waters of the river basin was carried out. Cherek. Sampling was carried out starting from the source of the Cherek River, during periods with different hydrological regimes. When sampling water, the temperature of air, water and transparency were recorded. Samples were preserved with nitric acid on the day of sampling. The concentrations of the following HMs, modern priority environmental pollutants, were determined: Cr, Ni, Mo, Mn, Pb, Zn, Ag, Cu, Cd. The determination of HM content in ice samples and river waters was carried out from 2003 to 2010 at the High Mountain Geophysical Institute by the method of emission spectral analysis. Sample analysis 2012–2021 were produced by the atomic absorption method on an MGA-915 spectrometer.Results and discussion. It was found that the chemical composition of water at the headwaters of the river and in the tongue of glaciers is closer than in the lower reaches of the river. HM concentrations at the beginning of the 21st century significantly exceed HM concentrations in recent years. In winter samples 2018−2019. in many samples, the content of some HMs is below their detection limit (L/L). The latest series of samples cover several points on the river. Cherek Balkar and after their confluence and the formation of the river. Cherek.Conclusions. The content of HMs in one of the most powerful glaciation centers in the Caucasus, Bezengi, was studied. The results obtained make it possible to judge the migration of HMs in the system of snow-firn-ice thickness - melt waters of glacier-fed rivers at their sources. For river waters of the river basin. Cherek Bezengi and the Bezengi and Mizhirgi glaciers in the last series of winter sampling samples (2018-2019) there is a decrease in the concentration of HMs. This is due to the fact that the content of HMs in winter sampling samples is close to their content in solid sediments. And for other series of samples, the content of HMs is determined by the melting of avalanches and ice falls from the slopes, which constitute a significant part of the balance of the Bezengi and Mizhirgi glaciers and contribute to an increase in the concentration of HMs in melt waters. |
| format | Article |
| id | doaj-art-20a2a3de500840af88a5c9d6e0e6cf01 |
| institution | Kabale University |
| issn | 2308-4758 |
| language | Russian |
| publishDate | 2022-10-01 |
| publisher | North-Caucasus Federal University |
| record_format | Article |
| series | Наука. Инновации. Технологии |
| spelling | doaj-art-20a2a3de500840af88a5c9d6e0e6cf012025-08-20T03:42:25ZrusNorth-Caucasus Federal UniversityНаука. Инновации. Технологии2308-47582022-10-01039711810.37493/2308-4758.2022.3.5588Heavy Metals in Glaciers and River Water of the Basin of the Bezengi Cherek River During Intense Graciation DegradationA. M. Kerimov0O. А. Kurasheva1High-Mauntain Geophysical InstituteHigh-Mauntain Geophysical InstituteIntroduction. Glaciers in mountainous areas are accumulators of atmospheric moisture and at the same time one of the main sources of food for the main rivers of the Caucasus and are promising sources of fresh water. This is especially true for the rivers of the basin of the largest glaciation unit - Bezengi. But besides the shortage of fresh water, there is another problem: its quality. Purpose of the work: to give a spatial and temporal characteristic of the distribution of the concentration of heavy metals (HM) in the Bezengi and Mizhirgi glaciers, as well as in the river. Cherek Bezengi in the period from the beginning of the XXI century.Materials and methods of research. In this work, a comparative analysis of the concentrations of HM contained in glaciers and river waters of the river basin was carried out. Cherek. Sampling was carried out starting from the source of the Cherek River, during periods with different hydrological regimes. When sampling water, the temperature of air, water and transparency were recorded. Samples were preserved with nitric acid on the day of sampling. The concentrations of the following HMs, modern priority environmental pollutants, were determined: Cr, Ni, Mo, Mn, Pb, Zn, Ag, Cu, Cd. The determination of HM content in ice samples and river waters was carried out from 2003 to 2010 at the High Mountain Geophysical Institute by the method of emission spectral analysis. Sample analysis 2012–2021 were produced by the atomic absorption method on an MGA-915 spectrometer.Results and discussion. It was found that the chemical composition of water at the headwaters of the river and in the tongue of glaciers is closer than in the lower reaches of the river. HM concentrations at the beginning of the 21st century significantly exceed HM concentrations in recent years. In winter samples 2018−2019. in many samples, the content of some HMs is below their detection limit (L/L). The latest series of samples cover several points on the river. Cherek Balkar and after their confluence and the formation of the river. Cherek.Conclusions. The content of HMs in one of the most powerful glaciation centers in the Caucasus, Bezengi, was studied. The results obtained make it possible to judge the migration of HMs in the system of snow-firn-ice thickness - melt waters of glacier-fed rivers at their sources. For river waters of the river basin. Cherek Bezengi and the Bezengi and Mizhirgi glaciers in the last series of winter sampling samples (2018-2019) there is a decrease in the concentration of HMs. This is due to the fact that the content of HMs in winter sampling samples is close to their content in solid sediments. And for other series of samples, the content of HMs is determined by the melting of avalanches and ice falls from the slopes, which constitute a significant part of the balance of the Bezengi and Mizhirgi glaciers and contribute to an increase in the concentration of HMs in melt waters.https://scienceit.elpub.ru/jour/article/view/589bezengi glaciermizhirgir. cherek bezenginorth caucasusemission spectral analysisatomic absorption analysislimit of detection of hmsmigration of hms in glaciers |
| spellingShingle | A. M. Kerimov O. А. Kurasheva Heavy Metals in Glaciers and River Water of the Basin of the Bezengi Cherek River During Intense Graciation Degradation Наука. Инновации. Технологии bezengi glacier mizhirgi r. cherek bezengi north caucasus emission spectral analysis atomic absorption analysis limit of detection of hms migration of hms in glaciers |
| title | Heavy Metals in Glaciers and River Water of the Basin of the Bezengi Cherek River During Intense Graciation Degradation |
| title_full | Heavy Metals in Glaciers and River Water of the Basin of the Bezengi Cherek River During Intense Graciation Degradation |
| title_fullStr | Heavy Metals in Glaciers and River Water of the Basin of the Bezengi Cherek River During Intense Graciation Degradation |
| title_full_unstemmed | Heavy Metals in Glaciers and River Water of the Basin of the Bezengi Cherek River During Intense Graciation Degradation |
| title_short | Heavy Metals in Glaciers and River Water of the Basin of the Bezengi Cherek River During Intense Graciation Degradation |
| title_sort | heavy metals in glaciers and river water of the basin of the bezengi cherek river during intense graciation degradation |
| topic | bezengi glacier mizhirgi r. cherek bezengi north caucasus emission spectral analysis atomic absorption analysis limit of detection of hms migration of hms in glaciers |
| url | https://scienceit.elpub.ru/jour/article/view/589 |
| work_keys_str_mv | AT amkerimov heavymetalsinglaciersandriverwaterofthebasinofthebezengicherekriverduringintensegraciationdegradation AT oakurasheva heavymetalsinglaciersandriverwaterofthebasinofthebezengicherekriverduringintensegraciationdegradation |