Characteristics of public health risk for the citizens of Saransk (Republic of Mordovia) associated with the quality of drinking water from the central water supply

According to the results of laboratory tests within the socio-hygienic monitoring on the territory of Saransk it has been established, that the population of Saransk is living under negative impact of an aquatic peroral factor (drinking water from the centralized drinking water supply system). In all areas of Saransk the carcinogenic risk level exceeds the level Deminimis - 1*10 -6, but is within the limit of acceptable risk (-4). The main contribution to the formation of individual carcinogenic risk is made by chrome (YI) and cadmium. Elevated level of carcinogenic risk, associated with peroral administration of drinking water from the centralized drinking water supply system of Saransk, occurs in a greater or lesser extent within child population and in a part of adult population of the city (hazard index greater than 1.0). Considering the combined effects of complex chemical contaminants in drinking water, it is expected that there’ll be an increase of general toxic effects from the bone, cardiovascular system, gastrointestinal tract in children.