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It is known, that there are two qualitatively different sources of supply of Tbilisi by potable water - underground (artesian wells near settlements Natakhtari, Bulachauri, Mukhrani) and surface (Tbilisi reservoir filled with waters of the rivers Aragvi and Iori). The work gives the values of the main ions (Ca2+, Mg2+, SO4 2-, Cl-, HCO3-, CO3 2-) and water hardness in drinking (tap) water in different districts of Tbilisi city (the largest settlement in Georgia). There have been received the values of concentratio...

Natural sources of water, especially fresh water resources, are of significant importance for the population of each country. One of the major problems of the research of water state is the determination of influence of anthropogenic impact factors on water quality. In the given work there is executed statistical processing of the existing base of longterm historical data of the River Kura (Mtkvari) water quality parameters (some physical-chemical parameters and the main ions) for the period of 1980–1989, and th...