Radiation situation

Updated information on the radiation situation at the sites of NPPs of JSC «NNEGC «Energoatom» from May 16, 2025 to May 22, 2025

137Cs air activity at NPP sites, μBq/m3 137Cs air activity limits, μBq/m3(NRBU-97) EDR at NPP sites, in open areas, μSv/h
min/max
Branch SE Zaporizhzhya NPP(on the government-controlled territory)
* 800000 0,05 / 0,22**
Branch SE South Ukraine NPP
<0,64*** 800000 0,08 / 0,18
Branch SE Khmelnytskyy NPP
<1,18*** 800000 0,04 / 0,14
Branch SE Rivne NPP
21,3**** 800000 0,07 / 0,09

* data are not available due to the physical disconnection of the ZNPP data transmission systems by the russian occupationists

** data from the posts of the Automated Radiation Situation Monitoring System on the government-controlled territory. Data on the radiation situation in the temporarily occupied territory are published within the daily reports

*** below minimally detectable activity

**** the increased activity value of Cs-137 is due to the ingress of combustion products from the activities of private woodworking enterprises located near the control station in combination with the pumped air onto the filter. The marked settlement is located in the III zone of radioactive contamination as a consequence of the Chernobyl accident; local wood is characterized by an increased level of the radionuclide Cs-137

Therefore, in the areas of the NPP location, the radiation background has not changed and corresponds to the values ​​of normal operation of power units in the pre-war period.

Information on the radiation situation at NPP industrial sites and supervised areas as of 08:00 am on May 29, 2025

  EDR, μSv/h Air emissions, % of emission limit
Industrial site Sanitary protection zone Supervised area Radioactive inert gases Long-lived radionuclides Radioactive iodine
ZNPP 0,09* 0,12* 0,13* ** ** **
SUNPP 0,10 0,10 0,10 0,10 0,015 0,002
KhNPP 0,11 0,11 0,10 0,07 0,005 0,0008
RNPP 0,10 0,11 0,10 0,17 0,07 0,0003
CSFSF 0,20 0,42 0,16 - - -

* data were obtained from the IAEA IRMIS system on May 28, 2025

** data are not available due to the physical disconnection of the ZNPP data transmission systems by the russian occupationists

  EDR, μSv/h
Industrial site Sanitary protection zone Supervised area
ZNPP 0,09* 0,12* 0,13*
SUNPP 0,10 0,10 0,10
KhNPP 0,11 0,11 0,10
RNPP 0,10 0,11 0,10
CSFSF 0,20 0,42 0,16
  Air emissions, % of emission limit
Radioactive inert gases Long-lived radionuclides Radioactive iodine
ZNPP ** ** **
SUNPP 0,10 0,015 0,002
KhNPP 0,07 0,005 0,0008
RNPP 0,17 0,07 0,0003
CSFSF - - -

* data were obtained from the IAEA IRMIS system on May 28, 2025

** data are not available due to the physical disconnection of the ZNPP data transmission systems by the russian occupationists