River basin
Water pollution in the Bodva basin
- Sites in the 2025 yearbook
- 6
- Failed the standard (100%)
- 6
- Counted in the score
- 6
River basin overview
In the Bodva basin the SHMÚ yearbook has 6 monitoring sites; in 2025, 6 of them (100%) failed the standard for at least one indicator. 6 are counted in the scores of the fishing districts.
Watercourse profile of Bodva
SHMÚ sites from source to mouth
Watercourse profile from source to mouthnumber of unmet indicators in 2025 at SHMÚ sites
Show sites in the table (5)
- intake structure VVS, aboveriver km 41.8no unmet standard
- Medzev, aboveriver km 36.41 indicator
- Moldava nad Bodvou, aboveriver km 19.21 indicator
- Bodulov, belowriver km 13.3no unmet standard
- Hosťovce (Hidvégardó)river km 0.06 indicators
- standard not met
- no unmet standard
- site not in the yearbook
Year-by-year trend
Share of sites in the river basin that failed the standard
- 20228 of 989%
- 202312 of 1580%
- 20246 of 1155%
- 20256 of 6100%
Worst sites in the river basin
Click to expand the history by year
Hosťovce (Hidvégardó)Bodva, river km 0.06 indicators in 2025
Indicator2022202320242025Oxygen and organic matterCOD (chemical oxygen demand)·standard met●standard not met·standard met·standard metNutrients and nitrogennitrites●standard not met●standard not met●standard not met●standard not metHarmful organic substancesAOX (adsorbable organic halogens)●standard not met●standard not met●standard not met·standard metPFOS (perfluorooctane sulfonate)·standard met·standard met·standard met●standard not metBiology and bacteriacoliform bacteria●standard not met●standard not met●standard not met●standard not metthermotolerant coliform bacteria●standard not met●standard not met●standard not met●standard not metintestinal enterococci●standard not met●standard not met●standard not met●standard not metculturable microorganisms (22 °C)·standard met●standard not met●standard not met●standard not metThe location of the site is only approximate (based on the water body).
Turňa, mouthTurňa, river km 2.22 indicators in 2025
Indicator2022202320242025Oxygen and organic matterCOD (chemical oxygen demand)●standard not met●standard not met·standard met·standard metBOD₅ (biochemical oxygen demand)●standard not met·standard met·standard met·standard mettotal organic carbon●standard not met·standard met·standard met·standard metNutrients and nitrogennitrites●standard not met●standard not met●standard not met●standard not metHarmful organic substancespetroleum substances (NEL)●standard not met●standard not met●standard not met·standard metAOX (adsorbable organic halogens)●standard not met●standard not met·standard met·standard metSalts, pH and mineralscalcium●standard not met●standard not met●standard not met●standard not metBiology and bacteriaphytoplankton abundance●standard not met·standard met·standard met·standard metchlorophyll a●standard not met·standard met·standard met·standard metNearest site for the fishing districts: Turňa č. 1, Turňa č. 2
Šaca, above VKIda, river km 23.81 indicator in 2025
Indicator2022202320242025Oxygen and organic matterCOD (chemical oxygen demand)·standard met●standard not met·standard met·standard metNutrients and nitrogennitrites●standard not met●standard not met●standard not met●standard not metammonium·standard met●standard not met·standard met·standard mettotal phosphorus·standard met●standard not met·standard met·standard metHarmful organic substancesAOX (adsorbable organic halogens)●standard not met●standard not met·standard met·standard metpetroleum substances (NEL)●standard not met·standard met·standard met·standard metNearest site for the fishing districts: Ida č. 1, Ida č. 2, Ida č. 3
Turňa nad BodvouHájsky potok, river km 1.95 indicators in 2024
Indicator2022202320242025Oxygen and organic matterCOD (chemical oxygen demand)–site not in the yearbook–site not in the yearbook●standard not met–site not in the yearbookNutrients and nitrogennitrites–site not in the yearbook–site not in the yearbook●standard not met–site not in the yearbooktotal phosphorus–site not in the yearbook–site not in the yearbook●standard not met–site not in the yearbookPAHs: 2 substances (not counted in the score)
Indicator2022202320242025PAHs (combustion and deposition)benzo(a)pyrene–site not in the yearbook–site not in the yearbook●standard not met–site not in the yearbookbenzo(ghi)perylene–site not in the yearbook–site not in the yearbook●standard not met–site not in the yearbookPolycyclic aromatic hydrocarbons. The standard for benzo(a)pyrene is extremely low (0.17 ng/l), so most streams exceed it; the main sources are combustion and atmospheric deposition.
The location of the site is only approximate (based on the water body).
Cestický P., mouthCestický P., river km 0.14 indicators in 2025
Indicator2022202320242025Nutrients and nitrogennitrites–site not in the yearbook–site not in the yearbook–site not in the yearbook●standard not metnitrates–site not in the yearbook–site not in the yearbook–site not in the yearbook●standard not mettotal nitrogen–site not in the yearbook–site not in the yearbook–site not in the yearbook●standard not mettotal phosphorus–site not in the yearbook–site not in the yearbook–site not in the yearbook●standard not metNižný Lanec, below, mouthKanský P., river km 0.82 indicators in 2025
Indicator2022202320242025Oxygen and organic matterCOD (chemical oxygen demand)–site not in the yearbook–site not in the yearbook–site not in the yearbook●standard not metNutrients and nitrogennitrites–site not in the yearbook–site not in the yearbook–site not in the yearbook●standard not metMedzev, aboveBodva, river km 36.41 indicator in 2025
Indicator2022202320242025Nutrients and nitrogennitrites●standard not met●standard not met·standard met●standard not metHarmful organic substancesAOX (adsorbable organic halogens)●standard not met·standard met·standard met·standard metBiology and bacteriaculturable microorganisms (22 °C)●standard not met·standard met·standard met·standard metPAHs: 1 substance (not counted in the score)
Indicator2022202320242025PAHs (combustion and deposition)benzo(a)pyrene●standard not met·standard met·standard met·standard metPolycyclic aromatic hydrocarbons. The standard for benzo(a)pyrene is extremely low (0.17 ng/l), so most streams exceed it; the main sources are combustion and atmospheric deposition.
The location of the site is only approximate (based on the water body).
Zábava, intake structure VVS, aboveZábava, river km 6.13 indicators in 2023
Indicator2022202320242025Nutrients and nitrogennitrites–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookHarmful organic substancesAOX (adsorbable organic halogens)–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookSalts, pH and mineralsaluminium–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookJasovOlšava, river km 1.13 indicators in 2023
Indicator2022202320242025Oxygen and organic matterCOD (chemical oxygen demand)–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookNutrients and nitrogennitrites–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookPAHs: 1 substance (not counted in the score)
Indicator2022202320242025PAHs (combustion and deposition)benzo(a)pyrene–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookPolycyclic aromatic hydrocarbons. The standard for benzo(a)pyrene is extremely low (0.17 ng/l), so most streams exceed it; the main sources are combustion and atmospheric deposition.
The location of the site is only approximate (based on the water body).
Ida, inflow into the Bukovec ReservoirIda, river km 41.33 indicators in 2023
Indicator2022202320242025Nutrients and nitrogennitrites–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookSalts, pH and mineralspH–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookBiology and bacteriasaprobic index of biosestone–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookPaňovce, aboveČečejovský potok, river km 15.22 indicators in 2023
Indicator2022202320242025Oxygen and organic matterCOD (chemical oxygen demand)–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookNutrients and nitrogennitrites–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookNearest site for the fishing districts: VN Paňovce
Čečejovce, aboveČečejovský potok, river km 8.02 indicators in 2023
Indicator2022202320242025Oxygen and organic matterCOD (chemical oxygen demand)–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookNutrients and nitrogennitrites–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookThe location of the site is only approximate (based on the water body).
JaníkKonotopa, river km 2.01 indicator in 2024
Indicator2022202320242025Nutrients and nitrogennitrites–site not in the yearbook·standard met●standard not met–site not in the yearbookČečejovce, belowČečejovský potok, river km 2.50 indicators in 2024
Indicator2022202320242025Nutrients and nitrogennitrites●standard not met–site not in the yearbook·standard met–site not in the yearbookHarmful organic substancesAOX (adsorbable organic halogens)●standard not met–site not in the yearbook·standard met–site not in the yearbookBiology and bacteriasaprobic index of biosestone●standard not met–site not in the yearbook·standard met–site not in the yearbookPAHs: 1 substance (not counted in the score)
Indicator2022202320242025PAHs (combustion and deposition)benzo(a)pyrene●standard not met–site not in the yearbook·standard met–site not in the yearbookPolycyclic aromatic hydrocarbons. The standard for benzo(a)pyrene is extremely low (0.17 ng/l), so most streams exceed it; the main sources are combustion and atmospheric deposition.
The location of the site is only approximate (based on the water body).
KomárovceIda, river km 14.23 indicators in 2022
Indicator2022202320242025Nutrients and nitrogennitrites●standard not met–site not in the yearbook–site not in the yearbook–site not in the yearbookHarmful organic substancesAOX (adsorbable organic halogens)●standard not met–site not in the yearbook–site not in the yearbook–site not in the yearbookPAHs: 1 substance (not counted in the score)
Indicator2022202320242025PAHs (combustion and deposition)benzo(a)pyrene●standard not met–site not in the yearbook–site not in the yearbook–site not in the yearbookPolycyclic aromatic hydrocarbons. The standard for benzo(a)pyrene is extremely low (0.17 ng/l), so most streams exceed it; the main sources are combustion and atmospheric deposition.
Drieňovec, road bridge Turňa nad Bodvou – DrienovecDrieňovec, river km 1.43 indicators in 2023
Indicator2022202320242025Nutrients and nitrogennitrites–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookSalts, pH and mineralscalcium–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookPAHs: 1 substance (not counted in the score)
Indicator2022202320242025PAHs (combustion and deposition)benzo(a)pyrene–site not in the yearbook●standard not met–site not in the yearbook–site not in the yearbookPolycyclic aromatic hydrocarbons. The standard for benzo(a)pyrene is extremely low (0.17 ng/l), so most streams exceed it; the main sources are combustion and atmospheric deposition.
The location of the site is only approximate (based on the water body).
Moldava nad Bodvou, aboveBodva, river km 19.21 indicator in 2022
Indicator2022202320242025Nutrients and nitrogennitrites●standard not met–site not in the yearbook–site not in the yearbook–site not in the yearbookNearest site for the fishing districts: Bodva č. 1, Bodva č. 2
Stará Bodva, mouthStará Bodva, river km 0.21 indicator in 2022
Indicator2022202320242025Nutrients and nitrogennitrites●standard not met–site not in the yearbook–site not in the yearbook–site not in the yearbookThe location of the site is only approximate (based on the water body).
Zábava, road from Jasov to MedzevZábava, river km 0.11 indicator in 2024
Indicator2022202320242025PAHs: 1 substance (not counted in the score)
Indicator2022202320242025PAHs (combustion and deposition)benzo(a)pyrene–site not in the yearbook–site not in the yearbook●standard not met–site not in the yearbookPolycyclic aromatic hydrocarbons. The standard for benzo(a)pyrene is extremely low (0.17 ng/l), so most streams exceed it; the main sources are combustion and atmospheric deposition.
The location of the site is only approximate (based on the water body).
Olšava, mouthOlšava, river km 0.01 indicator in 2023
Indicator2022202320242025PAHs: 1 substance (not counted in the score)
Indicator2022202320242025PAHs (combustion and deposition)benzo(a)pyrene·standard met●standard not met–site not in the yearbook–site not in the yearbookPolycyclic aromatic hydrocarbons. The standard for benzo(a)pyrene is extremely low (0.17 ng/l), so most streams exceed it; the main sources are combustion and atmospheric deposition.
- standard not met
- no unmet standard
- site not in the yearbook
Fishing districts near these sites
Fishing districts whose nearest SHMÚ site lies in this river basin
- Turňa č. 1site Turňa, mouth · standard not met in 4 of 4 years · nitrates in the groundwater nearby 6.0 mg/l2 indicators
- Turňa č. 2site Turňa, mouth · standard not met in 4 of 4 years · nitrates in the groundwater nearby 2.3 mg/l2 indicators
- VN Paňovcesite Paňovce, above · standard not met in 1 of 4 years · nitrates in the groundwater nearby 26.6 mg/l2 indicators
- Ida č. 1site Šaca, above VK · standard not met in 4 of 4 years · nitrates in the groundwater nearby 19.0 mg/l1 indicator
- Ida č. 2site Šaca, above VK · standard not met in 4 of 4 years · nitrates in the groundwater nearby 19.0 mg/l1 indicator
- Ida č. 3site Šaca, above VK · standard not met in 4 of 4 years · nitrates in the groundwater nearby 28.5 mg/l1 indicator
- Bodva č. 1site Moldava nad Bodvou, above · standard not met in 1 of 4 years · nitrates in the groundwater nearby 16.0 mg/l1 indicator
- Bodva č. 2site Moldava nad Bodvou, above · standard not met in 1 of 4 years · nitrates in the groundwater nearby 16.0 mg/l1 indicator
- Bodva č. 3site Bodva, intake structure VVS, above · standard not met in 0 of 4 years · nitrates in the groundwater nearby 7.5 mg/lno unmet standard
- Bodva č. 4site Bodva, intake structure VVS, above · standard not met in 0 of 4 years · nitrates in the groundwater nearby 5.0 mg/lno unmet standard
What most often fails
Number of sites in the river basin that failed this indicator in 2025
- counted in the fishing district score
- shown, not counted in the score
Where the data come from and what they do not say
- Surface waters: yearbooks of the Slovak Hydrometeorological Institute (SHMÚ) Surface Water Quality for the years 2022 to 2025. We transcribed the list of sites and indicators that failed the standard under Government Regulation no. 269/2010 Coll. into a table in the plugin. Older yearbooks are in a different format and we did not include them.
- Groundwater: SHMÚ yearbooks Groundwater Quality, stations and indicators exceeded in 2017 to 2025 according to the drinking-water limits. The connection to the fishing district is only indirect.
- Groundwater, measured values: the public SHMÚ interface "Groundwater quality monitoring results". We have actually measured values (nitrates, ammonium, iron, chlorides, metals, pesticides, PFAS, solvents) for 758 stations; for each substance we take the highest value from the samples in 2025 (for stations without data for that year, from one of the two previous years). A value equal to the standard counts as an exceedance, as it does at SHMÚ.
- Treatment plants: register of wastewater treatment plants (VÚVH, EEA) from the "Points near fishing districts" file, that is, only plants within 2 km of the fishing district line. There are considerably more treatment plants in Slovakia.
What this data does not say. The yearbook lists the sites that failed the standard. A site missing from it is not proof of clean water, so the score of a fishing district is only ever lowered and never raised. We did not include industrial polluters (the National Pollution Register) in the list because the register was unavailable when the data was collected, and for wastewater treatment plants we list only those we found near the fishing districts. Only 31% of SHMÚ sites have an exact location, 47% have only an approximate location (based on the water body, so they count less near the districts) and 22% have no location at all, so we do not assign them to any district. We determine the distance, the match of the watercourse name and the ranking ourselves; the assignment is indicative.