Lake water quality turbidity in Portugal

Portugal: Lake water quality turbidity was 19.1% in 2021. ▲ Rising

Latest (2021)
19.1%
Change on year
up 118.4%
World rank
54th
of 144 countries
All-time high
19.1%
in 2021
All-time low
7.5%
in 2018
Years of data
5
2017–2021

Lake water quality turbidity in Portugal, 2017–2021

051015202017201920212017: 9.12018: 7.52019: 14.62020: 8.72021: 19.1

Source: United Nations Statistics Division, SDG Global Database.

Analysis

Portugal recorded 19.1% for lake water quality turbidity in 2021. That is the highest value across all 5 years on record.

Compared with earlier readings it is up 118.4% on the previous year and up 109.4% over five years.

That places Portugal 54th out of 144 countries with data for 2021, putting it in the middle of the range.

Lake water quality turbidity in Portugal, year by year

Annual values for Lake water quality turbidity (%) in Portugal, 2017 to 2021.
Year Value Change
2017 9.1% —
2018 7.5% -17.5%
2019 14.6% +94.0%
2020 8.7% -40.1%
2021 19.1% +118.4%

Portugal compared with similar countries

  • Portugal's 19.1% is above the median for high income countries, which is 16.3%, 1.2× the median. (37 countries reporting)
  • Portugal's 19.1% is above the median for Europe & Central Asia, which is 13.7%, 1.4× the median. (40 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
2010s 10.4% 7.5% 14.6% 3
2020s 13.9% 8.7% 19.1% 2

Countries ranked near Portugal

  1. 51 Estonia 19.8% compare
  2. 52 Panama 19.7% compare
  3. 53 Myanmar 19.5% compare
  4. 55 Central African Republic 18.7% compare
  5. 56 Croatia 18.6% compare
  6. 57 Poland 18.1% compare

See the full ranking of 179 places →

More environment data for Portugal

All data for Portugal →

Frequently asked questions

What is lake water quality turbidity in Portugal?
Lake water quality turbidity in Portugal was 19.1% in 2021, according to United Nations Statistics Division, SDG Global Database.
What is the highest lake water quality turbidity recorded in Portugal?
The highest recorded value was 19.1% in 2021.
What is the lowest lake water quality turbidity recorded in Portugal?
The lowest recorded value was 7.5% in 2018.
How does Portugal rank for lake water quality turbidity?
Portugal ranks 54th out of 144 countries with data for 2021.
Where does this Portugal data come from?
The figures come from United Nations Statistics Division, SDG Global Database, published as part of Lake water quality turbidity (%). Statizoid updates them automatically from the source API.

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Lake water quality turbidity in Portugal. Statizoid, drawing on United Nations Statistics Division, SDG Global Database. Retrieved 02 October 2026, from https://environment.statizoid.com/stat/lake-water-quality-turbidity-percent/portugal/

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About this data

Indicator
Lake water quality turbidity (%)
Source
United Nations Statistics Division, SDG Global Database
Licence
UN SDG Global Database (open, attribution requested)
Coverage
179 places, 895 data points, 2017–2021
Last refreshed