Аннотации:
© 2018, Springer Science+Business Media, LLC, part of Springer Nature. The article proposes a method of determination of the required quality for surface water used to prepare drinking water with the acceptable level of a risk to public health when consuming the drinking water. Data tuples were generated as a result of a special monitoring composition study of surface water within the water intake zone and drinking water sampled in houses and apartments. These data tuples were used as a basis for constructing regression models connecting metal cation concentrations in water of the water intake and piped drinking water. Threshold concentrations of metals in surface water within the water intake of Kazan were calculated by solving inverse problems such as Cauchy ones based upon given acceptable values (a level of carcinogenic risk and a background cation concentration of metals without carcinogenic potential).