Isotopes of uranium in waters and ice of Pamir–Alai

  • Ilona V. Matveyeva al-Farabi Kazakh National University, Almaty, Kazakhstan
  • Nurgul A. Nursapina al-Farabi Kazakh National University, Almaty, Kazakhstan
  • Tamara V. Tuzova Institute of Water Problem and Hydropower of National Academy, Bishkek, Kyrgyzstan
  • Balnur A. Shynybek al-Farabi Kazakh National University, Almaty, Kazakhstan
DOI: https://doi.org/10.15328/cb1006
Keywords: uranium isotopes, alpha-spectrometry, non-equilibrium uranium, natural waters, ice, Pamir-Alai

Abstract

The article presents the results of determination of concentration and isotope composition of uranium in waters and ice of the Pamiro-Alai. The obtained experimental data are the background for studying of the regularities of the formation of the effluent of mountain rivers. This work is significant because of the studied region is transboundary and is under the interest of the neighboring countries. Sampling was carried out during fieldwork in 2016 under the USAID-Afghanistan PEER454 project. Determination of uranium isotopes was carried out using high-resolution alpha-spectrometry after radiochemical isolation and purification. The main objects of this study are Kyzylsu and Muksu rivers with their tributaries, as well as the ice of this region. Three genetic types were determined based on the obtained experimental data. The first type includes atmospheric precipitations and young ice (ice from the glacier of Lenin and a spring near the Ters-Agar passage). The second type of water is characteristic for waters having contact with uranium-enriched rocks (the estuary of Kashkasu river). The third type of water is waters of deep circulation with active water exchange in mountain ranges with a high uranium concentration (eastern springhead of the Kyzylsu river). The calculations showed that the main source of most of the studied water bodies are atmospheric precipitations.

References

1 Uralbekov B, Burkitbayev M, Satybaldiyev B, Matveyeva I, Tuzova T, Snow D (2014) Environ Earth Sci 9:3635-3642. Crossref

2 Uralbekov BM, Burkitbayev MM, Mamatkanov DD, Matveyeva IV, Satybaldiyev BS, Tuzova TV (2013) Uranium isotopes in the water of Chu river basin [Izotopy urana v vodah bassejna reki Chu]. Materials of the 4th International Conference “Radioactivity and Radioactive Elements in Human Environment [Radioaktivnost’ i radioaktivnyye elementy v srede obitaniya cheloveka]”, Tomsk, Russia. P.535-537. (In Russian)

3 Matveyeva IV, Nazarkulova ShN, Tuzova TM, Uralbekov BM, Amanova GT, Mambetaliyev ED (2015) Chem Bull Kazakh Univ 4:61- 67. (In Russian). Crossref

4 (2003) Instruction of the Scientific Council on analytical methods 381–YaF «Method of performing measurements of the volumetric activity of uranium isotopes (234, 238) in natural waters with mineralization up to 5 g/dm3 by alpha-spectrometric method with radiochemical preparation [Metodika vypolneniya izmereniy ob`emnoi aktivnosti izotopov urana (234, 238) v prirodnyh vodah s mineralizaciey do 5 g/dm3 alpha- spektrometricheskim metodom s radiohimicheskoi podgotovkoi]. ASITs FGUP VIMS, Moscow, Russia. (In Russian)

5 (2015) Sanitary and epidemiological requirements of ensuring radiation safety [Sanitarno – ehpidemiologicheskie trebovaniya k obespecheniyu radiacionnoj bezopasnosti]. Republican Center for Legal Information of the Ministry of Justice of the Republic of Kazakhstan, Astana, Kazakhstan. (In Russian)

6 Tuzova TV (2017) Estimation of distribution of the flow of transboundary mountain rivers by uranium-isotopic method [Otsenka raspredeleniya stoka transgranichnykh gornykh rek uran-izotopnym metodom]. Proceedings of the 3rd All-Russian scientific conference with international participation “Water and Environmental Issues of Siberia and Central Asia [Vodnyye i ekologicheskiye problemy Sibiri i Tsentral’noy Azii]”, Vol.4, Barnaul, Russia. P.126-134.

7 Burkitbayev MM, Uralbekov BM, Tuzova TV (2017) Non-equilibrium uranium as a the natural indicator of processes in the water-ecological systems of Central Asia [Neravnovesnyi uran kak estestvennyi indikator processov v vodno-ecologicheskih sistemah Central`noy Azii]. KazNU, Almaty, Kazakhstan. (In Russian). ISBN 978-601-04-2923-9

8 Matveyeva IV, Tuzova TV (2017) Bulletin of the Tajik National University. Natural Science Series [Vestnik Tadzhikskogo natsional’nogo universiteta. Seriya yestestvennykh nauk] 1/2:151-158.

9 Tuzova T, Matveyeva I, Uralbekov B (2017) Uranium isotopes in waters as radio ecological indicator of genesis of waters and relative distribution of water resources of mountain rivers in Central Asian. Proceedings of the 4th International Conference on Radioecology and Environmental Radioactivity, Berlin, Germany. P.237-238.

10 Matveyeva I, Tuzova T, Nursapina N, Meiirman F, Uralbekov B (2017) In-situ pre-concentrating of uranium isotopes on coal for alpha-spectrometric measurements (with approbation on water samples of mountain rivers). Proceedings of the 4th International Conference on Radioecology and Environmental Radioactivity, Berlin, Germany. P.276-277.
Published
2018-09-29
How to Cite
Matveyeva, I., Nursapina, N., Tuzova, T., & Shynybek, B. (2018). Isotopes of uranium in waters and ice of Pamir–Alai. Chemical Bulletin of Kazakh National University, 90(3), 20-27. https://doi.org/https://doi.org/10.15328/cb1006
Issue
Vol 90 No 3 (2018): Chemical Bulletin of Kazakh National University
Section
Environmental Chemistry
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