Lough Ross
Northern Ireland, Northern IrelandView mapDirections
NIEA publishes the water-quality measurements for Lough Ross. Here is what has been measured.
- Limited data
Lough Ross in Northern Ireland, Northern Ireland has official water-quality measurements, shown as reported. Phosphorus: 70 µg/L.
How Lough Ross is classified
Lough Ross in Northern Ireland 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 Northern Ireland Environment Agency (DAERA).
Lough Ross is a lake in Northern Ireland County, Northern Ireland.
Source: the Northern Ireland Environment Agency (DAERA) — not the EPA Water Quality Portal, last sampled 2024-11-27. 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 Lough Ross is safe to swim in today is a call for the Northern Ireland Environment Agency (DAERA) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lough Ross
These are the measurements NIEA publishes for Lough Ross. More on the source.
No clarity data. Phosphorus 70 µg/L. TSI 65.
| 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 | 70µg/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. | 65 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Lough Ross
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Lough Ross
Compare lakeside cabins, hotels, and vacation rentals near Lough Ross in Northern Ireland, Northern Ireland — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Lough Ross
Prices for Oct 2–4, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Follow Lough Ross’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Lough Ross
Frequently asked questions about Lough Ross
Where is Lough Ross?
- Lough Ross is a lake in Northern Ireland, Northern Ireland. This page reports official water-quality measurements, shown as reported.
What is the water quality of Lough Ross?
- Lough Ross in Northern Ireland, Northern Ireland has official water-quality measurements, shown as reported. Phosphorus: 70 µg/L.
Is Lough Ross safe to swim in?
- Lough Ross 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.
Explore Lough Ross across LakeQuality
More lakes in Northern Ireland
Where this data comes from
103 measurements from 1 monitoring station, 2016–2024. Retrieved from the Northern Ireland Environment Agency (not the EPA Water Quality Portal) on 2026-08-16.
Collected and reported by
- Department of Agriculture, Environment and Rural Affairs (Northern Ireland)
daera-ni103 samples · 2016–2024
Analytical methods
- DAERA NIEA lake nutrient monitoring
Monitoring station identifiers (1)
10934
Authority classifications are shown as the authority published them. See where the data comes from and data sources.