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Varna Medical Forum

Quality of drinking water in the Black Sea coast Dobrich - Part 2

Daniel Monov, Nadezhda Stefanova, Teodora Dimitrova, Snezana Marazova, Diana Radkova, Genoveva Ragyovska

Abstract

Introduction: Water is essential to life, but it can also be a carriers of diseases in the countries of all continents - from the poorest to the richest. The most common and widespread health risks associated with drinking water are dependent upon geological conditions, natural and anthropogenic chemicals above certain levels, as well as upon pathogenic bacteria , viruses and parasites caught in it.

Aim and tasks: To investigate the quality of drinking water in the coast municipalities in Dobrich area: Balchik, Kavarna and Shabla for a 6 -year monitoring period 2008-2013

Materials and methods: Data from monitoring joint programs in areas which supply water for the Black Sea coast municipalities: Shabla, Kavarna, Balchik with total beam sampling and testing for chemical and microbiological parameters of drinking water at the tap of the consumer, according to Ordinance №9 regarding the quality of drinking water and such for household purposes (Prom. SG SG 30/2001. )

Results: The water-supply network in the municipalities on the Black Sea coast Shabla, Kavarna and Balchik is more than 40 years old, great at length. Non-standard samples by municipalities are in a wide range from 6% in 2008 for Balchik to 70% for Kavarna in 2011. Non-standard samples in Kavarna Municipality are permanently deviated by indicator nitrates in 6 settlements, in the municipality of Shabla in two settlements, which affects the overall indicator of substandard for microbiological and chemical parameters.

Conclusions: Deviations from the norm in Balchik municipality are 6% from 2009 to 13% in 2012 and 2013, in Shabla municipality deviations are in the range from 31% for 2009 to 12% in 2013. Kavarna municipality - from 25.4% in 2009 to 70% in 2011 and 38% and 22% for 2012 and 2013.


Keywords

drinking water ,monitoring, nitrates ,Black Sea coast

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