Albufeira Fratel
Albufeira Fratel in Unknown, Portugal has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 130 µg/L.
Why Albufeira Fratel has no A–F grade
Albufeira Fratel in Portugal is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the Portuguese Environment Agency (APA), via UNEP GEMS/Water.
Albufeira Fratel is a lake in Unknown County, Portugal.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2023-12-04. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Albufeira Fratel
These readings exist but do not meet the evidence bar for an A–F grade — see why.
No clarity data. Phosphorus level: 130 µg/L. Trophic State Index: 74.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 130 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 74 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Albufeira Fratel
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Fishing Albufeira Fratel
Frequently asked questions about Albufeira Fratel
What is the water quality of Albufeira Fratel?
- Albufeira Fratel in Unknown, Portugal has official water-quality measurements, not a LakeQuality A–F grade. Phosphorus: 130 µg/L.
Is Albufeira Fratel safe to swim in?
- Albufeira Fratel 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
49 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
europeanenvironmentagenc49 samples · —
Analytical methods
- GEMStat OPEN / CC BY 4.0
Monitoring station identifiers (1)
PRT00060
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See methodology and data sources.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2023-12-04
Monitoring stations: 1