What is it and where it is located?
It is a small lake located in the southern Ural Mountains in western Russia. In early 1951, when the Soviet Union still existed, the lake was used as a repository for radioactive waste
It is a small lake located in the southern Ural Mountains in western Russia. In early 1951, when the Soviet Union still existed, the lake was used as a repository for radioactive waste
what level of radiation?
According to the statement on nuclear expenses of Worldwatch Institute, Karachai is "polluted" Earth site. The lake is 4.44 exabequereles (EBq) of radioactivity, the 3.6 EBq are Cesium-137 and Strontium 0.74 EBq-90. For comparison, the Chernobyl disaster provided from 5 e 12 EBq of radioactivity and was not all concentrated in one place.The radiation level in the area near the radioactive tributary of the lake is 600 roentgen per hour (6 Sievert per hour), enough to kill a human in just an hour.

