Jezero Vrana
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Hrvatske vode publishes the water-quality measurements for Jezero Vrana. Here is what has been measured.
- Limited data
Jezero Vrana in Croatia has official water-quality measurements, shown as reported. Phosphorus: 11.7 µg/L. Chlorophyll-a (algae): 1.1 µg/L.
How Jezero Vrana is classified
Jezero Vrana in Croatia is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: Croatian Waters (Hrvatske vode), via UNEP GEMS/Water.
Jezero Vrana is a lake in Unknown County, Croatia.
Source: Croatian Waters (Hrvatske vode), via UNEP GEMS/Water — not the EPA Water Quality Portal, last sampled 2023-12-06. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Jezero Vrana is safe to swim in today is a call for Croatian Waters (Hrvatske vode), via UNEP GEMS/Water and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Jezero Vrana
These are the measurements Hrvatske vode publishes for Jezero Vrana. More on the source.
No clarity data. Phosphorus 11.7 µg/L. Chlorophyll-a 1.1 µg/L. TSI 36.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 11.7µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 1.1µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 36 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
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Answers come straight from the public measurements and survey records on this page.
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Frequently asked questions about Jezero Vrana
Where is Jezero Vrana?
- Jezero Vrana is a lake in Croatia. This page reports official water-quality measurements, shown as reported.
What is the water quality of Jezero Vrana?
- Jezero Vrana in Croatia has official water-quality measurements, shown as reported. Phosphorus: 11.7 µg/L. Chlorophyll-a (algae): 1.1 µg/L.
Is Jezero Vrana safe to swim in?
- Jezero Vrana has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.
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Where this data comes from
77 measurements from 1 monitoring station, 2016–2023. Retrieved from UNEP GEMS/Water GFQA (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- European Environment Agency
europeanenvironmentagenc77 samples · —
Analytical methods
- GEMStat OPEN / CC BY 4.0
Monitoring station identifiers (1)
HRV00042
Authority classifications are shown as the authority published them. See where the data comes from and data sources.