WATER SUPPLY IN CITIES OF BELARUS: WATER QUALITY AND RISK ASSESSMENT

摘要

In the paper different types of water supply systems in cities of Belarus and the quality of drinking water are discussed. Problems associated with intakes from pressure and non-pressure water-bearing horizons and surface water are described. Factors of drinking water pollution, including initial water chemical composition and current condition of water distribution system are analyzed. The peculiarities of groundwater pollution within urban areas, its main contaminants, spatial structure and dynamics are shown on the examples of Svetlogorsk and Polotsk cities. Ecological risk connected with consumption of polluted drinking water is assessed on the basis of concept of reference doze. The interrelated problems of groundwater pollution, safety water supply and food production are shown.