Hygiene of populated placesISSN: 2707-0441 eISSN: 2707-045X
Issue 72, 2022   -   Pages: 23-29
MEDICO-ECOLOGICAL ASSESSMENT OF THE IMPACT OF WATER NITRATES FROM DECENTRALIZED WATER SUPPLY SOURCES ON THE HEALTH OF YOUNG CHILDREN IN CHERKASY REGION IN 2021
J. Bondarenko1, . Tishchuk1
1 STATE INSTITUTION "CHERKASY REGIONAL CENTER FOR DISEASE CONTROL AND PREVENTION OF THE MINISTRY OF HEALTH OF UKRAINE"

: 546.175:613.26
https://doi.org/10.32402/hygiene2022.72.023

SUMMRY:
The article presents the results of water research of decentralized water supply sources for 2021 with the determination of nitrate concentration. The negative impact of nitrates on the health of young children has been shown. Ways to solve the problem of pollution of decentralized water supply sources with nitrates are outlined.
The purpose of the research is to study the actual concentration of nitrates in drinking water of decentralized water supply sources in order to establish a quantitative assessment of the risk to the health of young children.
A promising approach to solving the problem is a comprehensive approach to creating an epidemiological system (monitoring) of health care for young children from the negative impact of nitrates in drinking water from decentralized water supply sources, as the main basic source of their entry into the body, and primarily into the body of pregnant women and children three years old, and in the future and children up to 6 years old.
Object and methods of research. The object of the study is drinking water from decentralized water supply sources.
Research methods are generally accepted.
Research results and their discussion. In 2021, 925 water samples from decentralized sources of water supply were investigated, of which more than 30% showed a concentration of nitrates above the norm.
According to the requirements of DSanPiN 2.2.4-171-10 "Hygienic requirements for drinking water intended for human consumption", the permissible concentration of nitrates in drinking water is 50 mg/dm3. The permissible daily dose (DAD) of nitrates for an adult is set at 5 mg/kg/day, and for young children, respectively, 2.5 mg/kg/day [11].
DDD for children of younger age groups is: newborn children 9.45 mg/day, children 6-12 months 45 mg/day, children 1-3 years old 56.88 mg/day, children 4-6 years old 141.25 mg/day [1].
At the same time, there is an actual excess of the daily nitrate load for infants who are on artificial feeding when the concentration of nitrates in drinking water is at the level of the hygienic standard, i.e. 50 mg/dm3. For example, a child of the first month of life with a standard weight of 3.5 kg, who is on artificial feeding, receives food products 1/5 of his weight. That is, in a day she consumes 700 ml of drinking water, and only with water, she receives a daily nitrate load in the amount of 35 mg, which exceeds the permissible limit by 3.7 times. Nitrate load is especially dangerous for premature babies, due to a decrease in the weight of the child, etc.
Conclusions.
1. Develop methodological approaches to create and create a medical and epidemiological health care system for children under three years of age, pregnant women and children under 6 years of age from the negative impact of nitrates in water from decentralized water supply sources.
2. Poisoning of young children should be considered as an emergency situation and as a threat to their health and life.
3. To develop a norm of nitrates in water for young children.
4. To study issues related to the attitude of children under 6 years of age to young children.
5. Take measures to ensure that young children who are artificially fed with good quality drinking water.
6. Quantitative risk assessment for the health of young children should be studied both at the population and individual levels.
7. Constantly monitor the condition of underground decentralized sources of water supply.
8. Constantly carry out sanitary and educational work with the population of territorial communities, authorities.

KEYWORDS:
Nitrates, drinking water, health, young children, systems

REFERENCES:
1. Chornyy VI, Sherman BS, Grebnyak NP, Kolesnikov AN., Fedorenko AYu. [Prophylaxis and intensive therapy of acute intoxications of children and adolescents]. Kyiv-Donetsk; 2007. 1010 p. Russian.
2. Samotuha VV, Bondarenko YuH. [Ecological-hygienic assessment of the total intake of nitrates from drinking water and food products into the human body]. In: [Actual Issues of Hygiene and Ecological Safety of Ukraine. Collection of Report Abstracts]. Kyiv; 2010:120-3. Ukrainian.
3. Yanchuk VV. [Analysis of indicators of nitrate pollution of drinking water of decentralized sources of water supply in the city of Chernivtsi and Chernivtsi region]. Hygiene of Populated Places. 2000;37:95-9. Ukrainian.
4. Gabovich RD, Pryputin LS. [Hygienic basics of food protection from harmful chemicals]. Kyiv: Zdorovye; 1987:108,115,141,152,221. Russian.
5. Samotuha VV, Bondarenko YuH, Papach VV, Tyshchuk MM, Khomenko IV, Tereshchenko VH. [Medical and ecological characteristics of the source of water supply in Cherkasy]. In: [XIII Congress of the World Federation of Ukrainian Medical Societies. Collection of Report Abstracts]. Lviv; 2010:657-8. Ukrainian.
6. Bondarenko YuH. [Hygienic assessment of the total intake of nitrates with food products and drinking water in the body of young children]. [Abstract of the Dissertation]. Kyiv: Institute of Occupational Medicine of the Medical Academy of Ukraine; 1994. 23 p. Ukrainian.
7. Bondarenko YuH, Khomenko IV, Bilyk LI, Zahoruiko NV. [Medical-ecological assessment of the centralized source of water supply in Cherkasy]. Environment and Health, 2010;3:30-5. Ukrainian.
8. [National Standard of Ukraine. Water quality. Determination of nitrate Part 1. Spectrometric method using 2,6 dimethylphenol]. (ISO 7890-1:1986, IDT) DSTU ISO 7890-1:2003. Ukrainian.
9. [National Standard of Ukraine. Water quality. Determination of nitrate Part 2. Spectrometric method using distilled 4-fluorophenol]. (ISO 7890-2:1986, IDT) DSTU ISO 7890-2:2003. Ukrainian.
10. [National standard of Ukraine. Water quality. Determination of nitrate Part 3. Spectrometric method using sulphacylic acid]. (ISO 7890-3:1988, MOD) DSTU 4078-2001. Ukrainian.
11. [State sanitary norms and rules 2.2.4-171-10 Hygienic requirements for drinking water intended for human consumption]. Kyiv: Ministry of Health of Ukraine, Pub. L. No. 400-99 (May 12 2010). Ukrainian. Available from: https://zakon.rada.gov.ua/laws/show/z0452-10#Text

FOR CITATION:
Bondarenko J, Tishchuk . Medico-ecological assessment of the impact of water nitrates from decentralized water supply sources on the health of young children in Cherkasy region in 2021. Hygiene of populated places. 2022;72:23-29. Ukrainian.