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  • 1 Institute of Nuclear Physics of the National Nuclear Center, Republic of Kazakhstan(INP NNC RK) Almaty 480082, Kazakhstan
  • | 2 Cooperative Monitoring Center (CMC), Sandia National Laboratories (SNL) Albuquerque, NM 87185-1373, USA
  • | 3 Institute of Nuclear Physics of the National Nuclear Center, Republic of Kazakhstan(INP NNC RK) Almaty 480082, Kazakhstan
  • | 4 Institute of Nuclear Physics of the National Nuclear Center, Republic of Kazakhstan(INP NNC RK) Almaty 480082, Kazakhstan
  • | 5 Institute of Nuclear Physics of the National Nuclear Center, Republic of Kazakhstan(INP NNC RK) Almaty 480082, Kazakhstan
  • | 6 Institute of Nuclear Physics of the National Nuclear Center, Republic of Kazakhstan(INP NNC RK) Almaty 480082, Kazakhstan
  • | 7 Institute of Nuclear Physics of the National Nuclear Center, Republic of Kazakhstan(INP NNC RK) Almaty 480082, Kazakhstan
  • | 8 Institute of Nuclear Physics of the National Nuclear Center, Republic of Kazakhstan(INP NNC RK) Almaty 480082, Kazakhstan
  • | 9 Cooperative Monitoring Center (CMC), Sandia National Laboratories (SNL) Albuquerque, NM 87185-1373, USA
  • | 10 Cooperative Monitoring Center (CMC), Sandia National Laboratories (SNL) Albuquerque, NM 87185-1373, USA
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Summary  

As part of an international collaboration (the Navruz Project) between Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, and the United States of America on transboundary river monitoring, the Radiometric Laboratory of the Institute of Physics in Kyrgyzstan measured the isotopic composition of uranium (as measured by &, the ratio of activities of 234U/238U) for the water of the Naryn River basin. This ratio varies from 1.5 to 1.9 due to natural causes. The results point to the lack of the technogenic uranium along the Naryn River through territory of the Kyrgyz Republic and to the contamination of the Mailuu-Suu River by technogenic uranium from tailing dumps in the area. The share of technogenic uranium transported to Uzbekistan does not exceed 30&, and the total uranium content is considerably lower than the maximum admissible concentration (MAC) and is almost an order of magnitude lower than that of potable waters of the Chui Valley of Kyrgyz Republic.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)