Last update of indicator 13.12.2021
The indicator describes the surface water quality in monitored sites.
1. Enough clean water for everyone
1.1 The prevention of water pollution
- Illegally discharged waste water from households, commerce and services, but also from the industry or leakage from environmental burdens and agricultural activity, significantlypollute surface and ground water. Strengthening and streamlining of controls, documentation of legal waste water disposal and a threat of real effective sanctions will help limit these actions.
1.3. Elimination of adverse impacts on water courses
- In terms of the impact on water status, there are three main groups of significant hydromorphological changes: a disruption of longitudinal connection of the rivers and the habitats, a disruption of transverse connection of wetlands and inundation with sewer and other morphological changes and hydrological changes. It is therefore essential to focus on the revitalization and re-naturalization of water courses and the adjacent riverine landscapes and to ensure the coherence of water courses, which is one of the basic conditions for the functioning of river ecosystems.
- The prioritization of renewal of land improvement channels will be set, depending on their function and use. Land improvement channels can also drain water from areas, where it is necessary. For this reason, it will be important to assess where the operation and maintenance of channels is needed and where it is environmentally harmful.
Slovak Water Plan (2016)
Environmental objectives aim to ensure and improve the quality of aquatic ecosystems and sustainable, balanced and equitable water use. Environmental targets are defined for surface water bodies, the groundwater bodies and the protected areas.
Environmental target for surface water bodies is to perform measures aimed at:
Strategy of SR adaptation to adverse impacts of climate change (2018)
5. Strategy objectives
To propose appropriate set of proactive adaptation measures and mechanisms to their implementation within the framework of sectoral policies, development strategies and action plans at all levels of the process;
8. Proposed adaptation measures in individual areas
8.5.3. Water management
Adaptation measures in our country should be directed to the compensation of drought manifestations, i.e. the decrease of flows and water resource yields, as well as to minimization of adverse consequences of flooding, particularly of flash floods in mountain and foothill areas. Adapting to the climate change in water management area should be focused on the implementation of measures leading to the creation of conditions for the better management of runoff in the river basin.
Water is becoming a critical strategic resource of the state which must be protected, and its efficient and effective use must be managed, in accordance with an objective of sustainable development ensuring. Rightly, the biggest attention is paid to water resources, their conservation and the need for more efficient use.
Measures to prevent degradation of water by contamination
- reducing contaminants in water bodies in accordance with the Slovak Water Plan
|Change since 2005||Change since 2015||Last year-on-year change|
|Since 2007, surface water quality indicators have been monitored according to the approved Program of surface waters status monitoring and have been evaluated in accordance with Annex no.1 of GR no. 269/2010 Coll. in indicators A, B, C, D and E. Nitrite-nitrogen and hydrobiological and microbiological indicators were frequently exceeded in all river.||
Requirements for surface water quality according to GR no. 269/2010 Coll. met selected general indicators and indicators of radioactivity, the limits in the group of synthetic and non-synthetic substances and hydrobiological and microbiological indicators were still exceeded.
|From the general requirements the GR was met by: selected general indicators and radioactivity indicators. The values of GR No. 269/2010 Coll. and priority substancese were evaluated by GR of environmental quality standards (GR No.167/2015 Coll.) and requirements were exceeded in a group of synthetic substances, non-synthetic substances and hydro-biological and microbiological indicators.|
|International river basin||Sub-basin||Number of monitored sites in sub-basin||Indicators not meeting the requirements for the surface water quality
under the Annex no.1
|Monitored||not meeting the require
|General indicators (A)||hydrobiological and microbiological
CODCr,N-NH4,N-NO2,N-NO3, O2,Ptot., pH, Ca, EK (conductivity),Al, AOX
|abundance of phytoplankton,
chorophyll-a, saprobic index of bioseston, culturable microorganisms at 22 oC
|Danube||Dunaj||18||12||N-NO2, pH||coliform bacteria, culturable microorganisms at 22 oC|
|Danube||Váh||152||113||pH, TOC, EK (conductivity), N-NO2, N-NO3, N-NH4, Ca, Ptot., Norg., BOD5, O2, Cl-, Na, Al,Fe,FN,Cr(IV), AOX, SO42-Ntot., CODCr||abundance of phytoplankton, coliform bacteria, saprobic index of bioseston, chorophyll-a, culturable microorganisms at 22 oC|
|Danube||Hron||39||25||O2, BOD5, CODCr, pH, N-NO2, N-NO3, Ptot.., Ca, AOX, N-NH4,EK (conductivity),TOC||coliform bacteria, saprobic index of bioseston, culturable microorganisms at 22 oC|
|Danube||Ipeľ||23||15||O2, CODCr, pH, EK (conductivity), N-NH4, N-NO2, N-NO3, Ptot., Ntot., Ca, AOX||abundance of phytoplankton,
chorophyll-a, culturable microorganisms at 22 oC
|Danube||Slaná||23||15||O2, BOD5, CODcr, pH, EK (conductivity),
Ptot.,Ca, N-NH4, N-NO2, N-NO3,Ntot., AOX
|thermotolerant col. bacteria, intestinal enterococci,
culturable microorganisms at 22 oC
|Danube||Bodrog||38||27||CODCr, N-NO2, AOX, N-NH4,O2, N-NO3,Ptot., Ca, NELuv||
abundance of phytoplankton, saprobic index of bioseston, intestinal enterococci,
chorophyll-a, thermotolerant col. bacteria, culturable microorganisms at 22 oC
|Danube||Hornád||29||20||CODCr,N-NO2, Ptot., EK (conductivity), N-NO3, Ca, AOX, F-, N-NH4, SO42- Al, NELuv||saprobic index of bioseston,
thermotolerant col. bacteria, culturable microorganisms
at 22 oC
|Danube||Bodva||16||13||O2, CODCr,N-NH4,N-NO2, Ntot.,Ptot., NELuv, N-NO3, AOX, Ca, Al||intestinal enterococci, coliform bacteria, chorophyll-a,
thermotolerant col. bacteria,
culturable microorganisms at 22 oC
|Vistula||Dunajec and Poprad||11||5||CODCr,N-NO2, AOX,TOC NELuv
||coliform bacteria, thermotolerant col. bacteria|
* - potentially does not meet water quality requirements according to the Government Regulation 269/2010 Coll. (<12 measurements per year)
|International river basin||Sub-basin||Indicators not meeting the requirements for the surface water quality under the Annex no.1|
|non-synthetic substances (B)||synthetic substances (C)|
FLU (AA), octylpfenol (AA),B(b)fluoranthene (HPC),B(ghi)perylene (HPC/HPC*),B(a)P (AA)*
|Danube||Dunaj||B(a)P (AA)*, FLU (AA)*|
|Danube||Váh||As (AA),Pb (AA),Cr (AA)||
FLU (HPC,AA/AA*), octyplfenol (AA), B(b)fluoranthene (HPC), Benzo(k)fluoranthene (HPC), B(ghi)perylene (HPC/HPC*), B(a)P (AA*), heptachlorine (HPC*,AA*)
Antracene (HPC), FLU (AA,HPC), B(b)fluorantene (HPC), B(k)fluorantene (HPC),PCP (AA), octylpfenol (AA*), 4-nonylpfenol (AA*), Cyklod. pesticídy (AA), Chlorphyrifos (AA), B(a)P (AA*), Heptachlorine (AA*,HPC*), TBT (AA*)
FLU (AA),B(a)P (AA*),B(ghi)perylene (HPC)
B(b)fluorantene (HPC),B(ghi)perylene (HPC),FLU (AA),PCB a jeho kongenéry (8,28, 52, 101) (AA),B(a)P (AA)*
|Danube||Hornád||CN (AA),TBT (AA)*, B(a)P (AA)*, FLU (AA),
|Vistula||Dunajec and Poprad||B(a)P (AA)*|
In 2020, qualitative indicators of surface water were monitored under an approved Water status monitoring program for 2020. 458 sites were monitored in a basic and operational mode. As a rule, the frequency of monitoring is evenly distributed during the calendar year, i.e. 12 times a year in accordance with the monitoring program. The less frequent monitoring is carried out in case of some biological indicators that are observed seasonally (2-7 times per year), radioactivity indicators (4 times per year) and relevant substances 4 times a year.
|Sub-basin||Number of assessed sites according to monitoring type|
|Basic||Operational||Basic and operational||Protected areas - drinking water||In total|
|Sub-basin Dunajec and Poprad||3||5||3||13||24|
Requirements for the surface water quality listed in the Regulation of the Government for the groups of non-synthetic and synthetic substances (Parts B and C) have not been met in the following indicators:
From the group of hydrobiological and microbiological indicators (Part E), the requirements specified in the Regulation of the Government have not been met in the following indicators: