Izvestiya vuzov. Yadernaya Energetika

The peer-reviewed scientific and technology journal. ISSN: 0204-3327

Results of the Long-Term Radioecological Monitoring of the Beloyarsk NPP Cooling-Pond

6/05/2024 2024 - #02 Environmental aspects of nuclear power

Panov A.V. Korzhavin A.V. Korzhavina T.N.

DOI: https://doi.org/10.26583/npe.2024.2.12

UDC: 502.175:621.039.7(285.2:470.54)

The results of long-term (1967 – 2019) radioecological monitoring of the Beloyarsk NPP cooling-pond are presented. The influence of the waste process waters from thermal (AMB-100 and AMB-200) and fast (BN-600 and BN-800) nuclear power plant reactors on the content of artificial radionuclides in surface waters, bottom sediments, macrophytes and ichthyofauna of the Beloyarsk cooling-pond was studied. Critical radionuclides, routes of their entry into the ecosystem and periods of maximum discharge of radioisotopes into the cooling-pond have been determined. It was shown that during the period of monitoring studies, the content of artificial radionuclides in the freshwater ecosystem main components decreased by tens and hundreds of times: in surface waters – by 4.3 – 74.5 times, in bottom sediments (silty sapropel) – by 10.1 – 505 times, in macrophytes (elodea, hornwort) – 13.1 – 25,800 times, in ichthyofauna (9 species of fish) – 1.3 – 44.6 times. The improvement in the radioecological state of the cooling pool occurred due to the shutdown of the first stage thermal reactors of the nuclear power plant (AMB-100 and AMB-200), as well as due to the decay and redistribution of the radioisotopes from the aqueous phase into bottom sediments and migration with water runoff from the pond to the river system. The maximum discharge of artificial radionuclides into the reservoir was noted during the period of restoration and decontamination work aimed at eliminating emergencies at the AMB thermal reactors of the first stage of the Beloyarsk NPP.The commissioning of the BN-800 fast brider power unit in 2016 did not lead to an increase in radioactivity in the Beloyarsk cooling-pond. This indicates the absence of a significant additional supply of the radioisotopes to the cooling pool after a change in the technology of electricity production at the Beloyarsk NPP from thermal to fast reactors.


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nuclear power plant cooling pool radioecological monitoring artificial radionuclides long-term dynamics

Link for citing the article: Panov A.V., Korzhavin A.V., Korzhavina T.N. Results of the Long-Term Radioecological Monitoring of the Beloyarsk NPP Cooling-Pond. Izvestiya vuzov. Yadernaya Energetika. 2024, no. 2, pp. 138-154; DOI: https://doi.org/10.26583/npe.2024.2.12 (in Russian).