Lake water quality trophic state in South Africa
South Africa: Lake water quality trophic state was 0.4% in 2021. ▬ Flat
Latest (2021)
0.4%
Change on year
up 96.6%
World rank
65th
of 121 countries
All-time high
0.4%
in 2021
All-time low
0.2%
in 2019
Years of data
5
2017–2021
Lake water quality trophic state in South Africa, 2017–2021
Source: United Nations Statistics Division, SDG Global Database.
Analysis
In 2021, lake water quality trophic state in South Africa stood at 0.4%. That is the highest value across all 5 years on record.
Compared with earlier readings it is up 96.6% on the previous year and up 6.1% over five years.
That places South Africa 65th out of 121 countries with data for 2021, putting it in the middle of the range.
Lake water quality trophic state in South Africa, year by year
| Year | Value | Change |
|---|---|---|
| 2017 | 0.4% | — |
| 2018 | 0.3% | -29.8% |
| 2019 | 0.2% | -39.9% |
| 2020 | 0.2% | +28.0% |
| 2021 | 0.4% | +96.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 0.3% | 0.2% | 0.4% | 3 |
| 2020s | 0.3% | 0.2% | 0.4% | 2 |
Countries ranked near South Africa
More environment data for South Africa
- Historical exposure to drought — Land soil moisture anomaly 5.46 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly 8.52 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.275 °C (2025)
- Temperature change 1.05 °C (2025)
- Newsprint — Import quantity, gaps filled 34,979 t (2024)
- Newsprint — Import quantity, annual growth rate 115.24 % change on previous year (2024)
- Newsprint — Import value, gaps filled 21,013 1000 USD (2024)
- Newsprint — Import value, annual growth rate 78.26 % change on previous year (2024)
- Printing and writing papers — Import quantity, annual growth rate 36.55 % change on previous year (2024)
Frequently asked questions
- What is lake water quality trophic state in South Africa?
- Lake water quality trophic state in South Africa was 0.4% in 2021, according to United Nations Statistics Division, SDG Global Database.
- What is the highest lake water quality trophic state recorded in South Africa?
- The highest recorded value was 0.4% in 2021.
- What is the lowest lake water quality trophic state recorded in South Africa?
- The lowest recorded value was 0.2% in 2019.
- How does South Africa rank for lake water quality trophic state?
- South Africa ranks 65th out of 121 countries with data for 2021.
- Where does this South Africa data come from?
- The figures come from United Nations Statistics Division, SDG Global Database, published as part of Lake water quality trophic state (%). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 5 observations, free to reuse under UN SDG Global Database (open, attribution requested).