The influence of technogenic sand of Dzhidinsky tungsten and molybdenum plant on the environment (Republic of Buryatia)

The article presents data on the ecological situation of Zakamensk associated with activity of Dzhidinsky tungsten and molybdenum plant. It analyzes technogenic pollution of soil and water of urban and suburban areas in the city. The main pollutants are tungsten, molybdenum, beryllium, zinc and copper, which accounts for more than 50%. The classification of soil contamination by toxic elements, which is divided into 5 zones ((old dumps of technogenic sands, the territory of the city which is poured out by technogenic sands, technogenic sands of the valley of Modonkul river, a new tailings pond for reenrichment) is given. Water objects are under the influence of technogenic waste, which was generated during activities of Dzhidinsky plant. The most intensive effects have miner waters of Holtosonsky and Pervomaisky fields and infiltration water from location areas of solid waste. Miner and infiltration water from Holtosonsky field, which fall in surface waters, are strong pollutants. The start of sulfide ores recycling pollute the Selenga River and the lake Baikal - a site of UNESCO World Heritage.