Natural radionuclides and toxic elements in the border areas of rivers flowing into Kazakhstan from Kyrgyzstan

Solodukhin, V. P.; Ленник, С. Г.; Kabirova, G. M.; Lobanov, Pavel Yu.; Zheltov, Dmitriy A.; Bychenko, A. N.; Levashov, Mikhail A.

doi:10.1007/s10967-020-07425-w

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…Monitoring results provides a basis for evaluating the sustainable use of water in these basins of not only the main channels but also small transboundary rivers. In 2020-2021, authors published detailed studies of these transboundary rivers [24], as well as the Shu River, which flows through the territory of the Kamyshanskoye ore field [25]. The present work is a continuation of the previously published studies.…”

Section: Introductionmentioning

confidence: 58%

Section: Research In a Transboundary River Basinmentioning

confidence: 99%

“…The transboundary basin includes the 11 rivers and Big Chu Canal. Riverbank sediment, floodplain soil, bottom sediment, and surface water were taken at 16 sample points: Kichi-Kemin (KK), Shu (SH), Shor-Koo (SHK), Aksu (AK), Karabalta (KB), Toktas (TS-1, TS-2), Sargou (SG), Oirandy (OR-1, OR-2, OR-3, OR-4), Kayindysay (KS), Aspara (AS), Talas (TA), and Big Chu Canal (BCH) (Figure 1 [24]). During the analysis of the previous results of riverbank soil, floodplain soil and sediment, it was determined that the following hazardous elements are of the greatest interest for research: Pb, Mo, U, As, Th, and Li.…”

Section: Research In a Transboundary River Basinmentioning

confidence: 99%

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Occurrence of Radionuclides and Hazardous Elements in the Transboundary River Basin Kyrgyzstan–Kazakhstan

Severinenko

Solodukhin

Djenbaev

et al. 2023

Water

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Important for irrigation, the transboundary river basin between Kyrgyzstan and Kazakhstan is vulnerable to geochemical and anthropogenic sources of pollution. The use of water use indices, together with measurements of the elemental and radionuclide composition of the water and bottom sediments, provides a means for evaluating the continued use of the water from this region. Recent monitoring shows the highest concentrations of hazardous contaminants include lead and thorium contained in the bottom and banks of the Kichi-Kemin River. These contaminants are likely remnants of an accidental spill at the Aktyuz tailing dump in 1964. The specific activity of the Th-232 of the bottom and banks of the Kichi-Kemin River is 107–189 Bq/kg. There is evidence of anthropogenic sources of additional pollution from uranium in both the bottom sediments and the water in the Oyrandy River. The geochemical origins of uranium and other associated elements in the water of the Shu River are likely the Kamyshanovskoye deposit. Contact between the riverbed and ore bodies in this region likely leads to elevated concentrations of several geogenic contaminants, including lithium, strontium, uranium, and boron (Li, Sr, U, B), increasing by as much as 60–130%. The uranium concentrations in the water of channels that are used for irrigation exceed the maximum allowable contaminant levels by 3.8 times. Future work is needed to evaluate the ecological and human health impacts of these contaminants in irrigation and drinking water.

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Section: Introductionmentioning

confidence: 58%

Section: Research In a Transboundary River Basinmentioning

confidence: 99%

Section: Research In a Transboundary River Basinmentioning

confidence: 99%

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Occurrence of Radionuclides and Hazardous Elements in the Transboundary River Basin Kyrgyzstan–Kazakhstan

Severinenko

Solodukhin

Djenbaev

et al. 2023

Water

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“…The Institute of Nuclear Physics of the Ministry of Energy of the Republic of Kazakhstan has been conducting com prehensive radioecological studies of environm ental objects for a long time. This work was carried out taking into account the experience of previou s studies of radiation and ecological conditions in the basins of the Central Asian rivers Syrdarya and Amudarya (under the international project "Navruz") and the basins of transboundary rivers [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

The first findings of the study of the territory of the water basin of the Kapshagai Reservoir. Uranium isotope distribution

Solodukhin,

Ydyrysheva,

Lennik

et al. 2023

J. Phys.: Conf. Ser.

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This article presents the first results of the examination of environmental objects (water, coastal soil, bottom sediments) of the Kapshagai Reservoir water basin. Radionuclide composition of selected samples by alpha-, gamma spectrometry and total alpha- and beta-activity were determined. It has been established that in some water samples, the total alpha activity exceeds the standard of the Republic of Kazakhstan for drinking water, the total beta activity does not exceed the standard. Presents the results of uranium-238, uranium-234, uranium-235 activities and also gives the ratio of uranium-234 to uranium-238 activities, which is an important indicator of water contamination by this element.

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