Quality of groundwater in the groundwater body SK1000600P

• Autorzy: Sutarova B.
• Języki publikacji: EN

Abstrakty

EN

The accession of Slovak Republic to the European Union created a commitment and a duty to implement the European Parliament Directive 2000/60/EC that sets the framework for the Community action in the field of water policy. Within the scope of this implementation, 101 groundwater bodies were established, 16 are in the Quaternary sediments, 59 in of pre-Quaternary sediments and 26 in geothermal settings. Seven Quaternary bodies were classified during evaluation chemical analyses as having a bad chemical state (Kunikova et al. 2005, Kullman et al. 2006). We focus on one of these groundwater bodies, namely on SK1000600P. SK1000600P is located in the South-Eastern part of the Podunajska nizina and covers an area of 515 km . The groundwater collection in the SK1000600P body consists of alluvial and terrace gravels, sandy gravels and sands. Fluvial sediments of river floodplains and terraces belobg to the most water-saturated beds. Hydrogeological character depends on the granulometric composition, width and position in regards to the surface flow. The rest of Quaternary sediments being to low impermeable aquifers. The hydrogeological collectors possess predominant intergranular permeability. The average width of aquifer is < 10 m (Vaskovsky et al. 1982). The general direction of flow of underground water in the alluvial floodplain of the Quaternary body is more or less parallel with the main flow (Malik et al. 2005). The quality of groundwater SK1000600P formation was analysed based on chemical analyses from seven observatory boreholes (Hurbanovo-Maly Vek, Iza-Bokros, Komarno--Komocin, Iza, Moca and Kravany) of the Slovak Hydrometeorological Institute network, during the 2002-2010 time period. The current state was evaluated based on threshold values (the Decree of the Government of the Slovak Republic 282/2010) and limit values (the Decree of the Government of the Slovak Republic 496/2010). The basic chemical composition of the groundwater varies. The calcium and magnesium are considered dominant with sodium also having a significant presence. In the anion spectrum carbonates can be considered dominant, the influence of the secondary pollution is reflected in a significant share of sulphates. According to the Palmer-Gazda classification, the groundwater body contains groundwater of the basically distinct Ca-Mg-HCO3 type up to the basically indistinct Ca-SO4 type. The overall TDS falls into the range from 0.6 g.L-1 to 1.4 g.L-1 . When analysing the parameters of the groundwater quality we found out, that the most polluted groundwater comes from the boreholes Iza-Bokros and Iza that feature an increase over the threshold limit values for Na+ , NH4+, Fe, Mn, Cl- a SO42-. It should be noted, that for example the primary origin of sulfates cannot account for such high concentration which means that it was most probably caused by anthropogenic activity.

Słowa kluczowe

EN

water policy; Podunajska nizina; Slovak Hydrometeorological Institute

• Wydawca: Wydawnictwa AGH
• Czasopismo: Geology, Geophysics and Environment
• Rocznik: 2012
• Tom: Vol. 38, no. 4
• Strony: 537--538
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Sutarova B.

• Comenius University in Bratislava, Department of Hydrogeology, Faculty of Natural Sciences; Młyńska dolina, 842 15 Bratislava, Slovak Republic

Bibliografia

• 1. Kullman E., Patschova A., Malik P. & Bodis D., 2006. Definition of groundwater bodies, their classification and evaluation of the impacts of human activity on their status, [in:] Kollar A. (ed.), Proceedings of the seminar "The Water Framework Directive — Status of implementation in Slovakia", NOI, Bratislava, 33-40.
• 2. Kunikova E., Hucko P., Adamkova J., Makovinska J., Borusovic S., Chriastel' R., Kullman E. & Vodny J., 2005. Administration of the Slovak Republic on the status of implementation of the Water Framework Directive prepared for the European Commission in accordance with Article 5, Annex II and Annex III and Article 6, Annex IV WFD. MZP SR, VUVH, SHMU, SVP, Bratislava.
• 3. Malik P., Svasta J. & Cernak R., 2005. Characterisation of groundwater bodies and pre-Quaternary rocks in terms of design, drainage and groundwater flow directions. Slovak Association of Hydrogeologists, Bratislava.
• 4. Vaskovsky I., Barta R., Hanzel V., Halouzka R., Harcar J., Karolus K., Pristas K., Pristas J., Remsik A., Sucha P., Vass P. & Vaskovska E., 1982. Explanatory notes to the geological map of the southeastern part of the Danube basin. GUDS, Bratislava.
• 5. Regulation of the Government of the Slovak Republic No. 282/2010 Coll., laying down threshold values and the list of bodies of groundwater.
• 6. Regulation of the Government of the Slovak Republic No. 460/2010 Coll., which amends the regulation of the Government of the Slovak Republic No. 354/2006 Coll., laying down the requirements for water intended for human consumption and control of the quality of water intended for human consumption.