Causes of drinking water pollution in the North-Kazakhstan oblast

In connection with the global increase in the deficit and demand for drinking water, one of the urgent issues of international cooperation in the field of environmental protection is the preservation and protection of water sources and human health. The reservoirs are a social, ecological and economic importance for the world society as a whole. Since only 2.5-3% (80% -90% of them in the form of ice) of available water reserves on the Earth are fresh, suitable for drinking, and consumers of water more than 7 billion people, then with this ratio, of course, should pay attention to the quality of the sources of drinking water: identify the causes of pollution and determine the appropriate methods of water treatment. At present days, considers that 2.1 billion people lack quality drinking water, this problem is becoming global. The solution of global problems is due to local action, which implies addressing the quality of drinking water point-wise, at the local level. Based on the above, the article examines the causes of pollution of drinking water in the North-Kazakhstan region taken from the largest water body of region is the Ishim River: primary and secondary pollution by inorganic pollutants and heavy metals of the source of drinking water, causes of pollution are analyzed; the article considers the geological features of the Ishim River as the primary pollution factors, secondary pollution is considered as the activity of industrial enterprises and agriculture, in particular, the introduction of various fertilizers, and recommendations for solving these problems of drinking water in regionGamtos mokslų fakultetasVytauto Didžiojo universiteta