Fishing conditions score, the best window of the day and fishing districts from the best conditions Low activity · average of one fishing district 15:00–17:00 VN Nižný Lanec /Kanaš/, window score 12. The score is an estimate of conditions based on weather, water and surroundings, not a bite forecast. Recalculated at 22:04. The course of the watercourse and its fishing districts. You can switch the line color to today's conditions, quality or any other parameter. Detailed filtersregion, district, riverbed, depth, shading, satellites, water chemistry and pollution, fish, geology Move the map with two fingers. In full-screen mode one finger is enough. The score is an estimate of conditions based on weather, water and surroundings, not a bite forecast. For each fishing district you can see what it is made of, how well it is supported by data and where the data comes from. Terrain height along the fishing district and the approximate water level. Reservoir This is a reservoir, so the watercourse is not assessed here: the water has no current, fall or gradient. The chart shows the terrain height along the fishing district. Source: Open Topo Data (eudem25m), 4 Nov 2026. The height is approximate (error of a few metres). Loading the 3D terrain model… Changes in the surroundings and nature from 2019 to 2025: how the banks, vegetation and landscape around the water change. The images switch automatically; you can also browse them by hand. Orthophoto mosaic of Slovakia © GKÚ Bratislava, NLC Zvolen. The year and day of imaging depend on the location, so individual years may differ in season and weather. Water quality according to SHMÚ, wastewater treatment plants near the fishing districts and groundwater nearby 1 of 1 fishing district with measurements has groundwater nearby with a value above the limit for at least one indicator. Source: SHMÚ (yearbooks on surface and groundwater quality), the register of wastewater treatment plants from VÚVH and the EEA. A SHMÚ site is assigned to a fishing district by the same watercourse name and by distance; the yearbook lists the sites that failed the standard, so a missing site is not proof of clean water. Metals and gold in river sediments and water, old mine workings and deposits, boreholes with archive reports, geothermal energy, environmental burdens and landslides around the stream The overview is based on public registers and atlases of the State Geological Institute of Dionýz Štúr. The search covers a zone around the water of all fishing districts of the stream (0 km of line in total): stream samples within 1 km, boreholes, mine workings and burdens within 3 km, ore occurrences within 5 km, geothermal sources within 10 km. River alluvium100% of the water line Gravelly and sandy bottom and floodplains; the water is replenished from groundwater in the alluvium. Geological Map of Slovakia 1:50,000. pH 8.2modelled estimate water type Ca–Mg–HCO₃–SO₄ Mineralisation 482 mg/l, hard water (15.6 °dH). Interpolation of measurements from the Geochemical Atlas of Slovakia, not a measurement in the stream. 1 from 15elements in the top 10 % highest: Antimony 6.29 mg/kg Position of the highest-ranked element among the sample points on streams in Slovakia: percentile 91. Interpolation of the Geochemical Atlas of river sediments. 55°C at 1,000 m depth heat flow 85 mW/m² At a depth of 2,000 m about 85 °C (increase of 30 °C per kilometre). Atlas of Geothermal Energy of Slovakia. 66nGy/h dose rate percentile 94 in Slovakia Natural background from rocks and soil (potassium, uranium, thorium), not a value measured at the water. Airborne gamma-ray spectrometry by ŠGÚDŠ. 0objects within 3 km No old mine working is recorded within 3 km of the water. 0samples with gold No gold was found in river sediment samples within 1 km of the water. The samples do not cover every stream, so this does not mean there is no gold here. 0 from 10indicators in the top 5 % highest: Chromium 4.20 μg/l Position of the highest measured value in the distribution of all surface water samples in Slovakia: percentile 88 (Konský potok). 31boreholes within 3 km 129 water analyses nearby Of these, 31 have an archive report from Geofond. The boreholes are hydrogeological, geological, engineering-geological and other. – 1 geothermal and mineral water spring within 10 km. 4sites within 3 km 4 landfills No environmental burden is registered within 3 km; landfills are only recorded. 0records within 5 km Geofond registers, the metallogenetic map and the mineral resources map. 12areas within 3 km Documented landslides in the Geofond register. A landslide into a stream can cloud the water and change the bed. Which rock lies beneath the water line (Geological Map of Slovakia 1:50,000), how old it is, how thick the Quaternary cover is and in which tectonic unit the water flows. The bedrock decides the hardness of the water, the bottom, the turbidity after rain and the abundance of springs. The points follow the water line (for a stream and a basin, fishing district after fishing district). The strip is a cross-section by distance, not a map; the width of a section corresponds to the number of points. marker on the bar: share among all sample points on streams in Slovakia River alluvium: Gravelly and sandy bottom and floodplains; the water is replenished from groundwater in the alluvium. marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia The map covers 1 of 1 points on the water line. Streams and rivers are fed by groundwater. Hydrogeological maps show in which rocks the water is stored, how permeable they are and what the water in them is like. The data come from ŠGÚDŠ maps, not from measurements at a particular water. marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia Modelled composition of the water in the area the fishing district line runs through. The rasters of the Geochemical Atlas of Slovakia (surface waters) are an interpolation of measurements in sampled streams, so they show the typical background of the area, not a measurement in a particular stream. pH 8.21typical range Most rivers and streams in Slovakia have a pH of 6.5 to 8.5. More acidic water is found in streams on acidic rocks (granites, quartzites), more alkaline water near limestones. 15.6°dH, hard Sum of calcium and magnesium (2.79 mmol/l). Hard water is buffered and its pH changes more slowly; soft water is more sensitive to acid rain. 482mg/l mineralisation Total amount of dissolved minerals. Clean mountain water has tens of mg/l, lowland and limestone waters hundreds. Water type by dominant ions: Ca–Mg–HCO₃–SO₄ Shares are in equivalents, the usual way of comparing the composition of waters. dot: average along the water line, line: from the lowest to the highest value, scale: position among sample points on streams in Slovakia (0 to 100th percentile) The Geochemical Atlas of Slovakia (river sediments) describes what the river carries in the fine material on its bed. Sediment collects metals from rocks, ore occurrences and past mining and industry. It is not a legal limit or a health risk assessment: it shows how an element on this stream ranks among streams in Slovakia. dot: average along the water line, line: from the lowest to the highest value, scale: position among sample points on streams in Slovakia (0 to 100th percentile) Airborne gamma-ray spectrometry by ŠGÚDŠ measures radiation from potassium, uranium and thorium in rocks and soil. Granites and some acidic volcanic rocks have the highest values, limestones and floodplains the lowest. Caesium-137 is a remnant of fallout from the Chernobyl accident and nuclear weapons tests. 66nGy/h in air Natural background from rocks and soil; higher over granites and some acidic volcanic rocks, lower over limestones and floodplains. medium Radon is a natural gas from rocks. The risk concerns buildings and cellars, not the water in the stream; it shows what the bedrock is like. dot: average along the water line, line: from the lowest to the highest value, scale: position among sample points on streams in Slovakia (0 to 100th percentile) marker on the bar: share among all sample points on streams in Slovakia Maps of the magnetic field and gravity (ŠGÚDŠ) reveal what lies beneath the sediments and the surface: volcanic bodies, faults and crustal thickness. For an angler they are interesting indirectly: they show where the bedrock changes, and with it the water. -30nT range -30 to -30 nT Deviation of the Earth's magnetic field from its surroundings. Positive and negative anomalies reveal rocks with magnetite (basalts, basic volcanic rocks) and boundaries in the bedrock. -11mGal residual −4.1 mGal Negative values lie over thick sediments and under mountains (light crust), positive over dense rocks and thinner crust. It shows the structure of the Earth's crust, not the water. The Atlas of Geothermal Energy of Slovakia records rock temperature and heat flow from the Earth's interior. It is the potential of the area, not the actual warmth of the water in the stream. Specific geothermal boreholes and springs near this water are in the geothermal energy section below. 55 / 85 °Cat depths of 1,000 and 2,000 m increase of 30 °C per km The line shows the rock temperature; the dotted part is only an extension to the surface. Heat flow 85 mW/m². marker on the bar: share among all sample points on streams in Slovakia A basin is not just water: slope and elevation determine the speed of runoff, climate the temperature and amount of water, and soils what is washed into the stream. The data come from the geomorphological division, climatic-geographical types and soil maps of ŠGÚDŠ. marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia marker on the bar: share among all sample points on streams in Slovakia Where the nearest mine workings, deposits, burdens, geothermal boreholes and gold finds are. Groups can be switched off. The line is the water of the fishing district, the light band is the 3 km zone in which boreholes, mine workings and burdens were searched for. The map shows the nearest objects (at most a few dozen from each register), not all of them. The points correspond to the position in the register; area objects are marked by their centre. Arsenic, antimony, cadmium, lead, copper, zinc and other elements in samples from rivers and streams (Geochemical Atlas of Slovakia, surface waters, 2015). The bar shows where the highest value lies among all samples in Slovakia; the light marker is the median of the samples at this water. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 88 of all samples in Slovakia. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 83 of all samples in Slovakia. Highest value: Konský potok, 510 m from the water. Comparison: percentile 75 of all samples in Slovakia. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 65 of all samples in Slovakia. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 50 of all samples in Slovakia. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 46 of all samples in Slovakia. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 43 of all samples in Slovakia. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 37 of all samples in Slovakia. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 22 of all samples in Slovakia. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 22 of all samples in Slovakia. Basic water chemistry: which rocks the minerals in it come from. Highest value: Konský potok1993, 510 m from the water. Comparison: percentile 53 of all samples in Slovakia. Hydrogeochemical objects (analyses of springs and boreholes), the geochemical atlas of groundwater (1996) and radiohydrochemical sampling. Groundwater feeds streams, so its composition also affects the water in the stream. Highest value: studňa1992, 2.3 km from the water. Comparison: percentile 99 of all samples in Slovakia. Highest value: studňa1992, 1.5 km from the water. Comparison: percentile 97 of all samples in Slovakia. Highest value: studňa1993, 2.7 km from the water. Comparison: percentile 97 of all samples in Slovakia. Highest value: studňa1993, 2.4 km from the water. Comparison: percentile 97 of all samples in Slovakia. Highest value: studňa1993, 2.4 km from the water. Comparison: percentile 97 of all samples in Slovakia. Highest value: studňa1992, 1.9 km from the water. Comparison: percentile 95 of all samples in Slovakia. Highest value: studňa1993, 2.4 km from the water. Comparison: percentile 93 of all samples in Slovakia. Highest value: vrt1992, 1.7 km from the water. Comparison: percentile 92 of all samples in Slovakia. Highest value: studňa1992, 1.5 km from the water. Comparison: percentile 90 of all samples in Slovakia. Highest value: studňa1993, 2.4 km from the water. Comparison: percentile 89 of all samples in Slovakia. Highest value: studňa1993, 2.7 km from the water. Comparison: percentile 46 of all samples in Slovakia. Register of hydrogeological boreholes, other boreholes and geothermal boreholes. Each borehole has a report in the Geofond archive (geological profiles, pumping tests, chemical analyses of the water); the report number is in the table. 31 boreholes in the 3 km zone, of which 15 hydrogeological and 16 other; with an archive report number 31. Geothermal boreholes (wellhead water temperature, yield, chemical type) and sources of geothermal and mineral waters within 10 km. Data on the use and existence of a borehole come from the Geofond register. Recorded environmental burdens (industrial sites, landfills, mining), the register of waste landfills and monitoring of anthropogenic sediments (industrial sludge). It is a list of places, not a measurement of water pollution. Register of documented slope deformations (Geofond). Landslides by a stream can bring fine material into the water, change the bed and dam the channel. Data: © ŠGÚDŠ (https://www.geology.sk), downloaded 8 Nov 2026. Details in the Methodology. Who manages the fishing districts and where they are Bodrog basin and Hornád
By the water now
Today on the VN Nižný Lanec /Kanaš/ watercourse
Average of the watercourse's fishing districts
Best window today
Map and fishing districts of the watercourse
Elevation profile: reservoir
Terrain in 3D
Historical images
Water pollution on the VN Nižný Lanec /Kanaš/ watercourse
Groundwater: measured valuestypical value from stations within 10 km, 2025
Highest nitrates
Geology and geochemistry of the VN Nižný Lanec /Kanaš/ stream
Rock under the water
Water according to the atlas
Elements in river sediment
Heat underfoot
Natural gamma radiation
Old mine workings
Gold in river sediment
Trace elements in the stream water
Boreholes and groundwater analyses
Geothermal energy
Environmental burdens and landfills
Deposits and ore occurrences
Landslides and slope deformations
Geological structure beneath the water
Geological age of the rocks
Most common rock units
System Age Unit Points Quaternary Pleistocene – Holocene deluvial-fluvial sediments: predominantly ronal clays, sandy loams with fragments, fine-grained sands and flushes 1× Quaternary cover
Tectonic division
Regional geological division
Regional geological division (subunits)
Susceptibility of the area to slope deformations
Hydrogeology: aquifers and groundwater
Aquifer rocks (hydrogeological map 1:200,000)
Aquifer type
Main hydrogeological region
Geothermal groundwater bodies
Surface water chemistry according to the atlas
Water acidity
Water hardness
Dissolved substances
Ionic composition of the water
Major ions
11.6 mg/lpercentile 9556.3 mg/lpercentile 93108 mg/lpercentile 9023.9 mg/lpercentile 840.211 mg/lpercentile 8222.6 mg/lpercentile 7274.8 mg/lpercentile 64159 mg/lpercentile 34Nutrients and organic pollution
24.9 mg/lpercentile 953.64 mg/lpercentile 600.0978 mg/lpercentile 430.0421 mg/lpercentile 21Metals
124 μg/lpercentile 83225 μg/lpercentile 826.36 μg/lpercentile 470.0711 mg/lpercentile 35Elements in river sediments
Potentially toxic and trace elements
6.29 mg/kgpercentile 910.451 mg/kgpercentile 8413.3 mg/kgpercentile 830.413 mg/kgpercentile 790.178 mg/kgpercentile 710.277 mg/kgpercentile 6819.0 mg/kgpercentile 66106 mg/kgpercentile 5970.8 mg/kgpercentile 4823.4 mg/kgpercentile 442.51 mg/kgpercentile 440.334 mg/kgpercentile 417.82 mg/kgpercentile 4019.5 mg/kgpercentile 3157.3 mg/kgpercentile 23Major elements (iron, aluminium, calcium, magnesium, potassium, sodium, titanium, manganese, phosphorus)
2,168 mg/kgpercentile 955,028 mg/kgpercentile 701,015 mg/kgpercentile 691.54 %percentile 542.70 %percentile 505.17 %percentile 330.704 %percentile 180.626 %percentile 40.400 %percentile 3Further elements (barium, strontium, lithium, rubidium, zirconium, yttrium, cerium, boron, beryllium, gallium)
97.2 mg/kgpercentile 9435.9 mg/kgpercentile 8669.9 mg/kgpercentile 801.82 mg/kgpercentile 7433.1 mg/kgpercentile 68455 mg/kgpercentile 6793.0 mg/kgpercentile 62435 mg/kgpercentile 4911.5 mg/kgpercentile 3077.1 mg/kgpercentile 4Natural radioactivity and radon
Gamma radiation dose rate
Radon risk of the bedrock
10.7 ppm95th percentile3.37 ppm93th percentile1.49 %percentile 83609 Bq/m²percentile 6Radon risk by isopleths
Geophysical fields: magnetics and gravity
Magnetic anomaly
Bouguer gravity anomaly
Geothermal potential
Rock temperature with depth
Geothermal groundwater bodies beneath the water line
Relief, climate and soils
Geomorphological units
Geomorphological regions
Climatic-geographical types
Susceptibility of soils to acidification
Soil contamination (map 1:500,000)
Lithogeochemical types
Map of the corridor
Trace elements in surface waters
Major ions, mineralisation and pH
Groundwater: chemistry, water types and radioactivity
Metals in groundwater
Radon in waters
Type of site Samples Highest radon Median water source for individual supply 1 2,19 Bq/l 2.19 Bq/l well 1 9,07 Bq/l 9.07 Bq/l stream, river 1 0,0100 Bq/l 0.0100 Bq/l Boreholes and Geofond archive reports
Borehole depths
Nearest boreholes
Site Type Depth Archive report From the water V-KK-27-88 deposit 50.0 m 78965510 m NLH-1 hydrogeological 20.0 m 99848540 m Nižný Lanec narrow-diameter borehole with ordinary drinking and process water 20.0 m 17177 127Ac16.pdf630 m V-KK-28-88 deposit 50.0 m 78965640 m V-KK-29-88 deposit 70.0 m 78965940 m Nižný Lánec structural borehole with ordinary water 300.0 m 78903 127Ac24.pdf1.1 km Nižný Lánec SHMÚ observation borehole 11.7 m 16789 127Ac2.pdf1.2 km Buzica narrow-diameter borehole with ordinary drinking and process water 21.0 m 33357 127Ac17.pdf1.3 km VL-1-67 deposit 24.4 m 262491.4 km Vyšný Lánec narrow-diameter borehole with ordinary drinking and process water 17.0 m 50090 127Ad13.pdf1.5 km Nižný Lánec narrow-diameter borehole with ordinary drinking and process water 16.0 m 73646 127Ac20.pdf1.5 km Vyšný Lánec narrow-diameter borehole with ordinary drinking and process water 11.0 m 79269 127Ad32.pdf1.6 km Geothermal energy and mineral waters
Sources of geothermal and mineral waters
Source Type Water temperature (°C) Yield (l/s) Count Nearest from water category a1 mineral water < 15 < 5 1 3.8 km Environmental burdens, landfills and anthropogenic sediments
Waste landfills
Landfill Area Year established Monitoring From the water Nižný Lanec I. – Buzica – 1980 – 1.4 km Nižný Lánec III. – Nižný Lánec 1 800 m² 1950 – 1.7 km Vyšný Lánec II. – Vyšný Lánec – 1980 – 1.8 km Buzica III. – Buzica – 1960 – 2.5 km Landslides and slope deformations
Types of deformations
Degree of activity
Current state
How to read these data
Organizations and location
Organizations on the watercoursewho manages the fishing districts and what the conditions are there today
More watercourses nearby
3from 100
1445fishing districts
Map color
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lowerhigher
Cations (positive ions)
Anions (negative ions)
ChromiumCrslightly elevated
highest 4.20 μg/lmedian 4.20 μg/l1 sample
LithiumLislightly elevated
highest 19.0 μg/lmedian 19.0 μg/l1 sample
CadmiumCdslightly elevated
highest 0.250 μg/lmedian 0.250 μg/l1 sample
StrontiumSrtypical value
highest 260 μg/lmedian 260 μg/l1 sample
BariumBatypical value
highest 40.0 μg/lmedian 40.0 μg/l1 sample
SeleniumSebelow half of Slovakia
highest 0.500 μg/lmedian 0.500 μg/l1 sample100 % below the limit of quantification
LeadPbbelow half of Slovakia
highest 2.50 μg/lmedian 2.50 μg/l1 sample100 % below the limit of quantification
AntimonySbbelow half of Slovakia
highest 0.500 μg/lmedian 0.500 μg/l1 sample100 % below the limit of quantification
CopperCubelow half of Slovakia
highest 1.00 μg/lmedian 1.00 μg/l1 sample100 % below the limit of quantification
ArsenicAsbelow half of Slovakia
highest 0.500 μg/lmedian 0.500 μg/l1 sample100 % below the limit of quantification
Silicon dioxideSiO2typical value
highest 11.5 mg/lmedian 11.5 mg/l1 sample
LithiumLiextreme (top 1 %)
highest 173 μg/lmedian 40.0 μg/l11 samples
CadmiumCdhigh (top 5 %)
highest 1.30 μg/lmedian 0.250 μg/l11 samples82 % below the limit of quantification
ChromiumCrhigh (top 5 %)
highest 7.30 μg/lmedian 0.500 μg/l11 samples45 % below the limit of quantification
ZincZnhigh (top 5 %)
highest 2,360 μg/lmedian 125 μg/l11 samples9 % below the limit of quantification
AluminiumAlhigh (top 5 %)
highest 0.130 mg/lmedian 0.0100 mg/l11 samples45 % below the limit of quantification
CopperCuhigh (top 5 %)
highest 6.90 μg/lmedian 1.10 μg/l11 samples
SeleniumSeelevated (top 10 %)
highest 2.20 μg/lmedian 0.500 μg/l11 samples73 % below the limit of quantification
AntimonySbelevated (top 10 %)
highest 0.500 μg/lmedian 0.100 μg/l11 samples73 % below the limit of quantification
LeadPbelevated (top 10 %)
highest 2.00 μg/lmedian 0.500 μg/l11 samples64 % below the limit of quantification
ArsenicAsslightly elevated
highest 2.10 μg/lmedian 0.500 μg/l11 samples73 % below the limit of quantification
MercuryHgbelow half of Slovakia
highest 0.100 μg/lmedian 0.100 μg/l11 samples100 % below the limit of quantification
