COMPARISON OF POPULATION MORBIDITY IN SOME WATER SUPPLY ZONES OF A LARGE URBAN AGGLOMERATION AND PERMANGANATE OXIDIZABILITY OF DRINKING WATER

Abstract

There has been researched the relationship between permanganate oxidizability of drinking water and the primary and total population turnover in polyclinics of the city, located in the areas supplied with drinking water from surface water intake, infiltration water intake, as well as in the area located in the mixing zone of water from surface and infiltration water intakes, for the following diseases: malignant neoplasms, blood diseases, endocrine diseases, diseases of the circulatory system, respiratory diseases, diseases of the digestive organs, skin diseases. The method of correlation and regression analysis has been used to find the relationship between the indicator of drinking water quality and the number of applications (primary and/or general) of the population to polyclinics. Different manifestations of relationships between diseases of the population and permanganate oxidizability of drinking water have been revealed. Thus, permanganate oxidizability can positively or negatively affect respiratory diseases, blood diseases and congenital deformities.
 Differences in manifestation of relations between population diseases and permanganate oxidizability of water in the zone of surface water intake, the zone of mixing of surface and infiltration water intakes, as well as the zone of infiltration water intake have been established. The maximum number of correlation coefficients characterizing the relationship between the indicator and malignant neoplasms, diseases of urogenital system and skin diseases is noted for the zone of infiltration water intake, while in the other two zones the correlation coefficients are either absent or their occurrence is minimal. Correlation coefficients characterizing the relationship between the indicator and the same disease in the zones of influence of surface water intake, mixing zone and zone of influence of infiltration water intake can have different signs.
 It should be noted that correlation coefficients of moderate, noticeable and high association do not mean that there is a risk of one or another disease, but only indicate that there is some relationship between permanganate oxidizability and these diseases.