Hygienic assessment of the ionic composition of drinking water of the centralized water supply of the Vladimir region

Introduction. The paper presents the results of a study on the hygienic assessment of the cationic-anionic composition of drinking water of centralized water supply in the administrative centers of the Vladimir region.

Materials and methods. The object of the study was the water of the sources of the central water supply of the administrative centers of the Vladimir region. The content of water-soluble forms of anions and cations was determined by capillary electrophoresis. There were compared concentration values ​​with maximum permissible concentrations (MPC) and ranges of permissible hygienic standards (RHS).

Results. In some administrative centers, there has been established concentrations of nitrate ions, phosphate ions, magnesium ions, hardness exceeding the maximum permissible concentrations in drinking water of centralized water supply. Non‒compliance with permissible hygienic standards for chlorides in 16 localities was revealed as follows: for sulfates – in 11; for potassium ions – in 8; for sodium ions – in 9; for magnesium ions – in 3. Non-compliance with minimum RHS for calcium ions was found in the one city. The excess of RHS was noted in seven administrative centers for calcium ions. The drinking water of centralized sources in the city of Petushki is characterized by the highest compliance with hygienic standards (MPC and RHS) according to a set of indices; the smallest is the city of Murom.

Limitations are related to the one-time selection and small number of samples, which fails to allow for a broader interpreting of the obtained data.

Conclusion. The use of drinking water, the quality of which does not meet sanitary and hygienic requirements, may cause an increase in both the level of general morbidity of the population and in certain nosological forms. In order to reduce the potential adverse impact of drinking water with a high content of nitrate ions, phosphate ions, hardness salts on health, the population is recommended to use household water purification filters, the principle of operation of which is based on methods of adsorption and ion exchange, as well as to use household reverse osmosis systems with a mineralizer, allowing to purify drinking water by the membrane method get rid of excess anions and hardness salts and saturate it with trace elements necessary for the human body.

Compliance with ethical standards. The study does not require a biomedical ethics committee opinion.

Contribution:
Martsev A.A. – research concept and design, material collection and data processing, structuring of the article;
Selivanov O.G. – material collection and data processing, text writing;
Kosmacheva A.G. – text writing;
Kurochkin I.N. – laboratory research;
Trifonova T.A. – research concept and design.
All authors are responsible for the integrity of all parts of the manuscript and approval of the manuscript final version.

Conflict of interest. The authors declare no conflict of interest.

Acknowledgement. The study had no sponsorship.

Received: April 17, 2024 / Accepted: June 19 / Published: January 31, 2025