[Hygienic evaluation of water supply in the Khanty-Mansi Autonomous District--Yugry].

The paper considers the sources of water supply of the population of the Khanty-Mansi Autonomous District--Yugry. It gives data on the quality of water from the underground and surface sources. The reliably protected groundwater can meet the needs of the population of the Khanty-Mansi Autonomous District--Yugry for drinking water after improving its quality by aeration and filtration. An estimate of the population's provision with water is given by the towns and districts of the area. The state of most domestic water pipes was ascertained to be poor: 35.8% of the municipal water pipes and 75.0% of the departmental ones did not meet the hygienic requirements. 52.8% of water samples failed to meet the hygienic standards in sanitary and chemical indices, and 3.7% in microbiological ones, which undoubtedly affected the population's health. There are two ways of improving the water supply of the district's population: 1) to improve purification of the whole water delivered to inhabited localities and 2) to provide the population with high-quality water to be only drunk, including that to be bottled.