Waterborne releases to the Techa River from the Mayak plutonium facility in Russia during 1949–1956 resulted in significant doses to persons living downstream. The dosimetry system Techa River Dosimetry System-2016D has been developed, which provides individual doses of external and internal exposure for the members of the Techa River cohort and other persons who were exposed to releases of radioactive material to the Southern Urals. The results of computation of individual doses absorbed in red bone marrow and extraskeletal tissues for the Techa River cohort members (29,647 persons) are presented, which are based on residence histories on the contaminated Techa River and the East Urals Radioactive Trace, which was formed in 1957 as a result of the Kyshtym Accident. Available 90Sr body-burden measurements and available information on individual household locations have been used for refinement of individual dose estimates. Techa River Dosimetry System-2016D-based dose estimates will be used for verification of risk of low-dose-rate effects of ionizing radiation in the Techa River cohort.
1Urals Research Center for Radiation Medicine, Chelyabinsk, Russia
2Battelle Pacific Northwest National Laboratory, Richland, WA
3Emeritus, Department of Radiology, University of Utah, Salt Lake City, UT.
The authors declare no conflicts of interest.
For correspondence contact Bruce A. Napier, Pacific Northwest National Laboratory, MS K7-68, P.O. Box 999, Richland, WA, or email at email@example.com.
(Manuscript accepted 19 November 2018)
Online date: April 8, 2019