40 years of observations of the biota of the Chernobyl zone

«Radiation and Risk», 2026, vol. 35, No. 2, pp.186-206

DOI: 10.21870/0131-3878-2026-35-2-186-206

Authors

Geras’kin S.A. – Head of Lab., D. Sc., Biol., Prof. NRC “Kurchatov Institute” – KCRA. Contacts: 1 Kievskoe sh., Obninsk, Kaluga region, Russia, 249035; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. .
NRC "Kurchatov Institute" – Kurchatov Complex of Radiology and Agroecology, Obninsk

Abstract

The results of 40 years research of the radiobiological effects in plants and animals inhabiting areas contaminated by radionuclides as a result of the Chernobyl NPP accident have been summarized. Long-term radioecological studies under conditions of widespread and uneven radioactive contamination resulting from the largest accident in the history of nuclear power have yielded unique infomation about the responses of living nature at various levels of biological organization–from the molecular and cellular to the ecosystemic. Unique ecosystems, developed under chronic radiation exposure, are developing in areas contaminated by radionuclides in the absence of humans. The 30-km zone of the Chernobyl NPP has become a unique testing ground for studying, under natural conditions, the long-term ecological and biological consequences of abrupt changes in a complex of environmental factors, as well as the direction and intensity of selection.

Key words
Chernobyl NPP, radioactive contamination, doses, biological effects, radioadaptation, radiobiology, environmental health.

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