Where is Ylimmäinen Hangasjärvi?

Ylimmäinen Hangasjärvi is a lake in Posio, Finland. This page reports official water-quality measurements, shown as reported.

Is Ylimmäinen Hangasjärvi safe to swim in?

Ylimmäinen Hangasjärvi 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.

How deep is Ylimmäinen Hangasjärvi?

The available depth estimate for Ylimmäinen Hangasjärvi is shallower than its measured water clarity, which cannot be right, so no depth is shown.

Ylimmäinen Hangasjärvi

Posio, FinlandView map Directions

Syke publishes the water-quality measurements for Ylimmäinen Hangasjärvi. Here is what has been measured.

Clarity

2 m

Typical for Finland

Secchi · sampled 2022

Phosphorus

7.5 µg/L

Less phosphorus than most

Measured by Syke

Chlorophyll-a

3.2 µg/L

Less algae than most

Measured by Syke

Limited data

See the measurements Directions Where to stay

Ylimmäinen Hangasjärvi in Posio, Finland has official water-quality measurements, shown as reported. Water clarity: 2 m visibility. Phosphorus: 7.5 µg/L. Chlorophyll-a (algae): 3.2 µg/L.

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How Ylimmäinen Hangasjärvi is classified

Ylimmäinen Hangasjärvi in Finland 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 water clarity, phosphorus 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 Finnish Environment Institute (Syke) and the ELY Centres.

Ylimmäinen Hangasjärvi is a lake in Posio County, Finland.

Source: the Finnish Environment Institute (Syke) and the ELY Centres — not the EPA Water Quality Portal, last sampled 2022-09-14. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Ylimmäinen Hangasjärvi is safe to swim in today is a call for the Finnish Environment Institute (Syke) and the ELY Centres and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Ylimmäinen Hangasjärvi

These are the measurements Syke publishes for Ylimmäinen Hangasjärvi. More on the source.

Murky, only visible to about 6.6 ft. Phosphorus 7.5 µg/L. Chlorophyll-a 3.2 µg/L. TSI 42.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	2m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	7.5µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	3.2µg/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.	42	Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Ylimmäinen Hangasjärvi

Answers come straight from the public measurements and survey records on this page.

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Fishing Ylimmäinen Hangasjärvi

→ Ylimmäinen Hangasjärvi fishing regulations (limits, seasons, special rules)

Frequently asked questions about Ylimmäinen Hangasjärvi

Where is Ylimmäinen Hangasjärvi?: Ylimmäinen Hangasjärvi is a lake in Posio, Finland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Ylimmäinen Hangasjärvi?: Ylimmäinen Hangasjärvi in Posio, Finland has official water-quality measurements, shown as reported. Water clarity: 2 m visibility. Phosphorus: 7.5 µg/L. Chlorophyll-a (algae): 3.2 µg/L.
Is Ylimmäinen Hangasjärvi safe to swim in?: Ylimmäinen Hangasjärvi 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.
How deep is Ylimmäinen Hangasjärvi?: The available depth estimate for Ylimmäinen Hangasjärvi is shallower than its measured water clarity, which cannot be right, so no depth is shown.

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Where this data comes from

8 measurements from 1 monitoring station, 2022. Retrieved from Syke VESLA (not the EPA Water Quality Portal) on 2026-08-16.

Collected and reported by

Finnish Environment Institute (Syke) and ELY Centressyke-vesla8 samples · 2022

Analytical methods

SYKE VESLA

Monitoring station identifiers (1)

44893

Authority classifications are shown as the authority published them. See where the data comes from and data sources.