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In Bulgaria is observed a great variety of spring waters. They are mineral and mountain spring waters. According to their temperature they can be cold (up to 37 °С), warm (from 37°C to 60 °C) and hot (over 60 °C). This is temperature standard in Bulgaria, European Union.
The mountain spring waters are cold with temperature up to 25 °С.
In Bulgaria for drinking mineral and mountain spring waters are valid Ordinance No 9 / 2001, Official State Gazette, issue 30, and decree No. 178 / 23.07.2004. There are include:
- Physicochemical parameters;
- Microbiological data;
- Radiological study.
The aim of the publication is to show the results regarding Ordinance No. 9 / 2001, Official State Gazette, issue 30, and decree No 178 / 23.07.2004 with research of Nedyalka Valcheva, Trakia University, Stara Zagora. There are also including author research.
By their chemical composition they fall into three categories – low mineralized (up to 2 g/L), moderately mineralized (2 to 15 g/L) and highly mineralized (15 - 30 g/L). According to their chemical composition the mineral waters are divided into sulphate, sulfide, hydrogen carbonate, chloride and carbonic containing waters.
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