The study on the relationships between coliphages and viral and bacterial contamination of drinking water in the city’s water distribution system


  • Volodymyr Kobylianskyi Харківський національний університет міського господарства імені О.М. Бекетова, Ukraine
  • Galina Blagodarna Харківський національний університет міського господарства імені О.М. Бекетова, Ukraine


Ключові слова:

somatic coliphage, hepatitis A virus antigen, total coliform bacteria, drink water, chlorinated water


Water supply is one of the main ways of spreading dangerous infectious diseases. Inefficient technologies of water treatment and the emergency condition of urban water supply and sewage networks lead to microbiological contamination of tap water causing of massive outbreaks of acute intestinal infections in the population. To prevent such situations continuously monitor the microbiological quality of drinking water using indicators of water faecal contamination is necessary. Total coliform is the most common method of microbiological control water quality. The outbreaks of infectious diseases in the absence total coliform in water are required the additional indicators for monitoring. In the EU countries, in 2018, the somatic coliphage was introduced as indicator of drinking water quality. This virus of E.coli is a clear indicator of faecal water contamination. The water supply laboratories are using the methods of determining the coliphages now. The results of measurements are taken to the assessment of microbiological safety and water quality. But the high percentage of non-standard water samples for this indicator requires further research into its significance in the practical operation of water utilities. The long-term dynamics of microbiological indicators of water quality (coliphages, hepatitis A virus antigen and total coliform) in chlorinated tap water from the city’s water supply system is investigated in the article. The absence of the correlation of the coliphages with the hepatitis A virus antigen and the total coliform is established.


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