Marine waters affected by eutrophication in Ireland

Ireland: Marine waters affected by eutrophication was 37 Square kilometre in 2025. ◆ Volatile

Latest (2025)
37 Square kilometre
Change on year
unchanged
World rank
10th
of 31 countries
All-time high
226 Square kilometre
in 2001
All-time low
0 Square kilometre
in 2013
Years of data
25
2001–2025

Marine waters affected by eutrophication in Ireland, 2001–2025

0501001502002502001201320252001: 226 Square kilometre2002: 225 Square kilometre2003: 220 Square kilometre2004: 26 Square kilometre2005: 23 Square kilometre2006: 2 Square kilometre2007: 3 Square kilometre2008: 1 Square kilometre2009: 56 Square kilometre2010: 56 Square kilometre2011: 56 Square kilometre2012: 55 Square kilometre2013: 0 Square kilometre2014: 1 Square kilometre2015: 1 Square kilometre2016: 1 Square kilometre2017: 1 Square kilometre2018: 0 Square kilometre2019: 3 Square kilometre2020: 3 Square kilometre2021: 3 Square kilometre2022: 29 Square kilometre2023: 37 Square kilometre2024: 37 Square kilometre2025: 37 Square kilometre

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 10th out of 31 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.

Averages by decade

DecadeAverage LowestHighest 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

  1. 7 United Kingdom 529 Square kilometre compare
  2. 8 Estonia 137 Square kilometre compare
  3. 9 Sweden 117 Square kilometre compare
  4. 11 Germany 34 Square kilometre compare
  5. 12 Italy 27 Square kilometre compare
  6. 13 Croatia 11 Square kilometre compare

See the full ranking of 32 places →

More environment data for Ireland

All data for Ireland →

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 10th out of 31 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).

About this data

Indicator
Marine waters affected by eutrophication
Unit
Square kilometre
Source
Eurostat
Licence
CC BY 4.0 (Eurostat)
Coverage
32 places, 800 data points, 2001–2025
Last refreshed