Determination of 236U in aqueous and other environmental samples from the area of the Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00386489" target="_blank" >RIV/68407700:21340/25:00386489 - isvavai.cz</a>

Result on the web

<a href="https://ecaart15.ethz.ch/wp-content/uploads/2025/09/ProgramLeaflet_ECAART15_Sept04.pdf" target="_blank" >https://ecaart15.ethz.ch/wp-content/uploads/2025/09/ProgramLeaflet_ECAART15_Sept04.pdf</a>

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Determination of 236U in aqueous and other environmental samples from the area of the Czech Republic

Original language description

The anthropogenic uranium isotope 236U is a highly relevant analytical tool used for both qualitative and quantitative analysis of the environmental impact of nuclear activities, allowing characterization of both associated emissions and nuclear materials, while at the same time, due to the chemically conservative behaviour of uranium, it can be applied as a tracer of a number of natural processes. However, due to the trace concentrations in environmental samples, the analysis places considerable demands on the sensitivity of the instrumental method used, which for most applications is met only by accelerator mass spectrometry (AMS), also operated in Řež u Prahy since 2022 as a joint facility of the Institute of Nuclear Physics and the Archeological institute of the CAS and the FNSPE, CTU. The 236U levels were not previously mapped on the territory of the Czech Republic in connection with these facts, but recently, in cooperation with the Department of Nuclear Chemistry of the FNSPE, CTU and the TGM WRI, initial sampling and analysis of environmental samples from selected sites, including subsurface water from boreholes, surface water samples and sediment samples, especially from the Vltava River basin and the vicinity of the Temelín NPP, have been carried out. Besides these, various other samples including uranium ore, iron and demi-water from different sources were also analysed. Related ongoing project research includes mapping of 236U and 129I abundance in selected locations in the Czech Republic in the context of historical and present potential emission sources along with the preparation of a complete validated methodology to enable reliable monitoring of these anthropogenic radionuclides.

Czech name

—

Czech description

—

Type

O - Miscellaneous

CEP classification

—

OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů