PubMed · 5058863
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
G K Rhode. 1972. Utility environmental surveillance programs.. https://doi.org/10.2105/ajph.62.2.244
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
The Techa River in the Urals was contaminated with high-level radioactive waste from the MAJAK nuclear installation around 1950. The total discharge to the river amounted to 100 PBq with 90Sr and 137Cs contributing approximately 10 PBq each. This study has shown that the river presently contains approximately 0.3 TBq 90Sr, > 6 TBq 137Cs, and approximately 8 GBq 239,240Pu. The estimates were made for the part of the river starting 50 km from the point of discharge and ending 240 km downstream at the confluence with the Iset River. Radioactivity was measured only in the upper 0.10-m sediments layer. The external dose rates from the contamination range from 0.1-30 microGy h-1. The activity concentrations decrease exponentially or by power functions with distance.
Explore the source record for details and available documents.
Explore the source record for details and available documents.