Title

V.V. PETROV (VSEGEI), A.A. SEMENCHUK (JSC «North­West PGA»)

Ecological-­hydrogeochemical conditions of the North­-Dvina basin groundwater

A 3D digital hydrogeochemical model of the territory has been created. It considers the total hydrogeochemical zoning of the basin and the impact of natural and anthropogenic factors on the quality of groundwater for drinking purposes. An explanation of the origin of brines of the Riphean aquiferous complex is proposed. The main areas of discharge of deep-­lying aquifers are shown. The distribution of fresh containing natural contaminants groundwater and territories with the presence of anthropogenic pollution in some areas is reflected.
Keywords: 3D digital hydrogeochemical model, hydrogeochemical zoning, the quality of groundwater, natural contaminants, anthropogenic pollution.