Marine waters affected by eutrophication in Portugal
Portugal: Marine waters affected by eutrophication was 699 Square kilometre in 2025. ◆ Volatile
Marine waters affected by eutrophication in Portugal, 2001–2025
Source: Eurostat. Measured in Square kilometre.
Analysis
In 2025, marine waters affected by eutrophication in Portugal stood at 699 Square kilometre.
Compared with earlier readings it is down 22.7% on the previous year and down 40.7% over ten years.
Over the whole period, marine waters affected by eutrophication in Portugal peaked at 18,726 Square kilometre in 2003 and was at its lowest, 278 Square kilometre, in 2009.
Portugal ranks 5th of 31 countries on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 8,717 Square kilometre | 278 Square kilometre | 18,726 Square kilometre | 9 |
| 2010s | 749.4 Square kilometre | 359 Square kilometre | 1,179 Square kilometre | 10 |
| 2020s | 757.5 Square kilometre | 427 Square kilometre | 1,011 Square kilometre | 6 |
Countries ranked near Portugal
More environment data for Portugal
- Total greenhouse gas emissions excluding LULUCF 53.17 Mt CO2e (2024)
- Total greenhouse gas emissions excluding LULUCF per capita 4.97 t CO2e/capita (2024)
- Methane (CH4) emissions from Agriculture 4.92 Mt CO2e (2024)
- Methane (CH4) emissions from Building (Energy) 0.296 Mt CO2e (2024)
- Methane (CH4) emissions from Fugitive Emissions (Energy) 0.9579 Mt CO2e (2024)
- Methane (CH4) emissions from Industrial Combustion (Energy) 0.0441 Mt CO2e (2024)
- Methane (CH4) emissions (total) excluding LULUCF 11.4 Mt CO2e (2024)
- Methane (CH4) emissions from Power Industry (Energy) 0.0464 Mt CO2e (2024)
- Methane (CH4) emissions from Transport (Energy) 0.0253 Mt CO2e (2024)
- Methane (CH4) emissions from Waste 5.1 Mt CO2e (2024)
Frequently asked questions
- What is marine waters affected by eutrophication in Portugal?
- Marine waters affected by eutrophication in Portugal was 699 Square kilometre in 2025, according to Eurostat.
- What is the highest marine waters affected by eutrophication recorded in Portugal?
- The highest recorded value was 18,726 Square kilometre in 2003.
- What is the lowest marine waters affected by eutrophication recorded in Portugal?
- The lowest recorded value was 278 Square kilometre in 2009.
- How does Portugal rank for marine waters affected by eutrophication?
- Portugal ranks 5th out of 31 countries with data for 2025.
- Is marine waters affected by eutrophication rising or falling in Portugal?
- Over the last ten years it is down 40.7%. The long-run trend across the full record is volatile.
- Where does this Portugal 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).