Tellurium behaviour in the Fukushima Dai-ichi Nuclear Power Plant accident.

Author(s) Dickson, R.S.; Glowa, G.A.
Journal J Environ Radioact
Date Published 2019 Aug
Abstract

The behaviour of tellurium radionuclides in the Fukushima Dai-ichi Nuclear Power Plant accident was examined to determine if it is consistent with the current understanding of tellurium chemistry, and whether there is any evidence of tellurium dispersal by species other than aerosols (e.g., vapours). Previous speciation studies, hot-cell experiments, in-reactor experiments and the transport from the Chernobyl reactor accident indicated that tellurium would behave primarily as a particulate species that condensed at high temperature, although the initial chemical species may have transformed to other solid species on cooling and reaction with environmental compounds (e.g., air). The main volatile tellurium species expected would be organic tellurides, which could be produced by radiolytic or biochemical routes, and have reasonable stability under environmental conditions. The behaviour of Cs, which behaves exclusively as a particulate species in air at environmental temperatures, was compared with that of tellurium. The behaviour of tellurium was found to be consistent with the current understanding and no evidence of significant tellurium transport by vapour species was found.

DOI 10.1016/j.jenvrad.2019.03.024
Keywords Air Pollutants, Radioactive; Fukushima Nuclear Accident; Japan; Radiation Monitoring; Radioactive Fallout; Radioisotopes; Tellurium
ISSN 1879-1700
Citation Dickson RS, Glowa GA. Tellurium behaviour in the Fukushima Dai-ichi Nuclear Power Plant accident. J Environ Radioact. 2019;204:49-65.