DBPapers
DOI: 10.5593/SGEM2016/HB33/S02.042

THE QUALITY OF THE WELL WATER IN SELECTED REGIONS OF SLOVAKIA IN TERMS OF HEAVY METALS

R. Stanovic, L. Harangozo
Friday 11 November 2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, SGEM Vienna GREEN Extended Scientific Sessions, www.sgemviennagreen.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-81-0 / ISSN 1314-2704, 2 - 5 November, 2016, Book 3 Vol. 3, 325-332pp, DOI: 10.5593/SGEM2016/HB33/S02.042

ABSTRACT

The access to clean and safe drinking water is one of the basic conditions of life in developed countries. In generally development of industry and the whole civilization like as environmental degradation coincide with various environmental problems. One of these problems is the continuous deterioration of water resources. The study is the evaluation of well water from the city part of Trnava (Modranka) whose inhabitants used as non-potable water. From study area were equally taken samples of waters from 20 sampling sites. In these well waters were determined the basic chemical indicators of water quality. In this study are characterized heavy metals as lead, cadmium and nickel, if their values exceed or are close to the threshold. Limit value of drinking water for lead according to Slovak legislation is 0.01 mg.dm-3 and more than 10 samples (that represents 50% of all samples) exceeds or reaches this limit value. The highest detected value of lead in drinking water is 0.019 mg.dm-3, which represents 90% of the limit value exceeding. Ten wells do not have drinking water. Limit value in drinking water for nickel is 0.02 mg.dm-3. Only 3 samples of water do not exceed this value and in 13 water samples (65%) exceed the limit value. The highest detected value of nickel in water samples is 0.063 mg.dm-3 which exceed the limit value by 315%. Only 3 samples of well water meet the conditions because do not exceed the limit values of selected metals. Limit value in drinking water for cadmium is 0.005 mg.dm-3. Only 2 samples of well water reaches the limit value. The other 18 water samples exceeded the limit value. From the results can be concluded that collected samples of well water are usable for drinking.

Keywords: heavy metals, well water, cadmium, lead, contamination

PAPER DOI: 10.5593/SGEM2016/HB33/S02.042, THE QUALITY OF THE WELL WATER IN SELECTED REGIONS OF SLOVAKIA IN TERMS OF HEAVY METALS

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