Aidu Järv
Ida-Viru, Estonia131 haView mapDirections
KAUR publishes the water-quality measurements for Aidu Järv. Here is what has been measured.
- Limited data
Aidu Järv in Ida-Viru, Estonia has official water-quality measurements, shown as reported. Phosphorus: 20 µg/L. Surface area: 324.4 acres.
How Aidu Järv is classified
Aidu Järv in Estonia 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, but not water clarity and algae (chlorophyll-a).
LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.
Monitoring: the Estonian Environment Agency (Keskkonnaagentuur).
Aidu Järv is a 324-acre lake in Ida-Viru County, Estonia.
Source: the Estonian Environment Agency (Keskkonnaagentuur) — not the EPA Water Quality Portal, last sampled 2021-11-10. 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 Aidu Järv is safe to swim in today is a call for the Estonian Environment Agency (Keskkonnaagentuur) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Aidu Järv
These are the measurements KAUR publishes for Aidu Järv. More on the source.
No clarity data. Phosphorus 20 µg/L. TSI 47.
| 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 | 20µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading 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. | 47 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Lake Details
Surface area
131 ha
No bathymetric survey has been published for Aidu Järv, so its depth is not documented here.
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Frequently asked questions about Aidu Järv
Where is Aidu Järv?
- Aidu Järv is a lake in Ida-Viru, Estonia. This page reports official water-quality measurements, shown as reported.
What is the water quality of Aidu Järv?
- Aidu Järv in Ida-Viru, Estonia has official water-quality measurements, shown as reported. Phosphorus: 20 µg/L. Surface area: 324.4 acres.
Is Aidu Järv safe to swim in?
- Aidu Järv 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
14 measurements from 1 monitoring station, 2019–2021. Retrieved from KESE / Estonian Environment Agency (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Estonian Environment Agency (Keskkonnaagentuur)
kese-ee14 samples · 2019–2021
Analytical methods
- KESE I-level monitoring
Monitoring station identifiers (1)
SJB3492000
Authority classifications are shown as the authority published them. See where the data comes from and data sources.