Marine waters affected by eutrophication in Ireland
Ireland: Marine waters affected by eutrophication was 37 Square kilometre in 2025. ◆ Volatile
Marine waters affected by eutrophication in Ireland, 2001–2025
Source: Eurostat. Measured in Square kilometre.
Analysis
In 2025, marine waters affected by eutrophication in Ireland stood at 37 Square kilometre.
That represents a change of up 3,600.0% over ten years.
Over the whole period, marine waters affected by eutrophication in Ireland peaked at 226 Square kilometre in 2001 and was at its lowest, 0 Square kilometre, in 2013.
That places Ireland 12th out of 40 countries with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Marine waters affected by eutrophication in Ireland, year by year
| Year | Square kilometre | Change |
|---|---|---|
| 2001 | 226 Square kilometre | — |
| 2002 | 225 Square kilometre | -0.4% |
| 2003 | 220 Square kilometre | -2.2% |
| 2004 | 26 Square kilometre | -88.2% |
| 2005 | 23 Square kilometre | -11.5% |
| 2006 | 2 Square kilometre | -91.3% |
| 2007 | 3 Square kilometre | +50.0% |
| 2008 | 1 Square kilometre | -66.7% |
| 2009 | 56 Square kilometre | +5500.0% |
| 2010 | 56 Square kilometre | +0.0% |
| 2011 | 56 Square kilometre | +0.0% |
| 2012 | 55 Square kilometre | -1.8% |
| 2013 | 0 Square kilometre | -100.0% |
| 2014 | 1 Square kilometre | — |
| 2015 | 1 Square kilometre | +0.0% |
| 2016 | 1 Square kilometre | +0.0% |
| 2017 | 1 Square kilometre | +0.0% |
| 2018 | 0 Square kilometre | -100.0% |
| 2019 | 3 Square kilometre | — |
| 2020 | 3 Square kilometre | +0.0% |
| 2021 | 3 Square kilometre | +0.0% |
| 2022 | 29 Square kilometre | +866.7% |
| 2023 | 37 Square kilometre | +27.6% |
| 2024 | 37 Square kilometre | +0.0% |
| 2025 | 37 Square kilometre | +0.0% |
Ireland compared with similar countries
- Ireland's 37 Square kilometre is above the median for Europe & Central Asia, which is 3 Square kilometre, 12.3× the median. (30 countries reporting)
- Ireland's 37 Square kilometre is above the median for high income countries, which is 3 Square kilometre, 12.3× the median. (31 countries reporting)
Biggest year-on-year movements
Years where Marine waters affected by eutrophication in Ireland changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2009 | +5500.0% | 1 Square kilometre | 56 Square kilometre |
| 2022 | +866.7% | 3 Square kilometre | 29 Square kilometre |
| 2013 | -100.0% | 55 Square kilometre | 0 Square kilometre |
| 2018 | -100.0% | 1 Square kilometre | 0 Square kilometre |
| 2006 | -91.3% | 23 Square kilometre | 2 Square kilometre |
| 2004 | -88.2% | 220 Square kilometre | 26 Square kilometre |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 86.89 Square kilometre | 1 Square kilometre | 226 Square kilometre | 9 |
| 2010s | 17.4 Square kilometre | 0 Square kilometre | 56 Square kilometre | 10 |
| 2020s | 24.33 Square kilometre | 3 Square kilometre | 37 Square kilometre | 6 |
Countries ranked near Ireland
More environment data for Ireland
- Historical exposure to drought — Land soil moisture anomaly 2.51 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly 2.17 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.412 °C (2025)
- Temperature change 1.89 °C (2025)
- Wood-based panels — Production, annual growth rate 0 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual -1.13 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate -0.0083 % change on previous year (2024)
Frequently asked questions
- What is marine waters affected by eutrophication in Ireland?
- Marine waters affected by eutrophication in Ireland was 37 Square kilometre in 2025, according to Eurostat.
- What is the highest marine waters affected by eutrophication recorded in Ireland?
- The highest recorded value was 226 Square kilometre in 2001.
- What is the lowest marine waters affected by eutrophication recorded in Ireland?
- The lowest recorded value was 0 Square kilometre in 2013.
- How does Ireland rank for marine waters affected by eutrophication?
- Ireland ranks 12th out of 40 countries with data for 2025.
- Is marine waters affected by eutrophication rising or falling in Ireland?
- Over the last ten years it is up 3,600.0%. The long-run trend across the full record is volatile.
- Where does this Ireland data come from?
- The figures come from Eurostat, published as part of Marine waters affected by eutrophication. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 25 observations, free to reuse under CC BY 4.0 (Eurostat).