Near the international boundary where Mongolia and China meet Russia east of Lake Baikal, the operations produced approximately 5,000,000 pounds of
uranium in 1995 - along with millions of tons of tailings, waste rock, mine water and
mill processing water in the waste streams generated by the
uranium recovery technology.
The indoor radon action levels for US homes and schools were adopted in response to the use of radioactive
uranium mill tailings sand in construction and soil fill for homes and schools in the western US; recognized in the 1970's as one of the first direct community health risks from the
process of
uranium mining.