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DOI: 10.31862/2500-2961-2020-10-4-459-481

Ecological and chemical assessment of urban springs in Bryansk region

The purpose of the study is to present an analysis of the ecological and chemical state of the waters of urban springs in Bryansk region. The objects of this work were 35 springs located in the towns of the old-developed area – Bryansk region. The main indicators to be determined are organoleptic characteristics (taste, smell, color, turbidity), chemical characteristics (acidity, content of sulfate, chloride, nitrate, nitrite, phosphate ions, total salinity (dry residue), total hardness, total content of iron, zinc content). At the sampling point, the flow rate of the source, the temperature of the water and the environment were recorded. The studies were conducted in the autumn-winter period of 2019-2020. It is noted that all the analyzed springs belong to the class of low-yield and are organoleptically safe. According to the temperature regime, the water of the studied springs is cold. Discrepancies were found to regulatory requirements for: the content of nitrate ions (18 of 35 springs), total hardness (15), total mineralization (2), total iron content (1). Thus, 15 out of 35 studiedsprings satisfy all the quality indicators for drinking water defined in this work.

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