주남저수지
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NIER publishes the water-quality measurements for 주남저수지. Here is what has been measured.
- Limited data
주남저수지 in South Korea has official water-quality measurements, shown as reported. Water clarity: 0.5 m visibility. Phosphorus: 69.5 µg/L. Chlorophyll-a (algae): 40.2 µg/L.
How 주남저수지 is classified
주남저수지 in South Korea 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 National Institute of Environmental Research (Korea).
주남저수지 is a lake in Unknown County, South Korea.
Source: the National Institute of Environmental Research (Korea) — not the EPA Water Quality Portal, last sampled 2025-12-15. 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 주남저수지 is safe to swim in today is a call for the National Institute of Environmental Research (Korea) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for 주남저수지
These are the measurements NIER publishes for 주남저수지. More on the source.
Very murky, less than 1.6 ft of visibility. Phosphorus 69.5 µg/L. Chlorophyll-a 40.2 µg/L. TSI 67.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.5m | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 69.5µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 40.2µg/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. | 67 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Frequently asked questions about 주남저수지
Where is 주남저수지?
- 주남저수지 is a lake in South Korea. This page reports official water-quality measurements, shown as reported.
What is the water quality of 주남저수지?
- 주남저수지 in South Korea has official water-quality measurements, shown as reported. Water clarity: 0.5 m visibility. Phosphorus: 69.5 µg/L. Chlorophyll-a (algae): 40.2 µg/L.
Is 주남저수지 safe to swim in?
- 주남저수지 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
353 measurements from 1 monitoring station, 2016–2025. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.
Collected and reported by
- National Institute of Environmental Research (Korea)
nier-kr353 samples · 2016–2025
Analytical methods
- NIER national water-quality network (호소 surface chemistry)
Monitoring station identifiers (1)
2020B10
Authority classifications are shown as the authority published them. See where the data comes from and data sources.