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When carrying out the activities, related to the exploration, operation and processing of uranium ore in Bulgaria the environmental protection was not among the priorities. As a result of many years of industrial activity the technogenically increased natural radiation background in some regions has reached significant levels and the chemical pollutants has threatened the pools with clean water and the ground surface. The cessation of work for uranium mining and milling was done in a hurry, without preliminary pre...

The Zlataritsa river is located in the South-western part of Bulgaria and mouths into the Mesta river. The Zlataritsa river passes through Eleshnitsa settlement where mining sites for exploitation and treatment of uranium ore are located. This paper presents the river pollution of uranium and radium as a result of mining activities in the examined region. The data used are for three periods - during the complete productive engagement, during the technical liquidation and after the end of technical liquidation. The...