The study was conducted on water supplied to inhabitants of Lublin. Samples of water were taken from 8 water supply points every three months of 2005. The content of Fe, Mn, Cr, Zn, Cd, Cu, Pb, Na, Mg, Ca ions and SO42-, Cl-, Cl2, NH4+, NO2-, NO3- i F- was determined. It was found out that tap water in Lublin is of very good nutritive quality. Owing to its high concentration of calcium and magnesium ions it can be classified as mineral water.
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