Lake water quality trophic state in Southern Africa
Southern Africa: Lake water quality trophic state was 2.3% in 2021. ▼ Falling
Latest (2021)
2.3%
Change on year
up 34.9%
Rank
10th
of 30 groups
All-time high
3.9%
in 2017
All-time low
1.7%
in 2020
Years of data
5
2017–2021
Lake water quality trophic state in Southern Africa, 2017–2021
Source: United Nations Statistics Division, SDG Global Database.
Analysis
Southern Africa recorded 2.3% for lake water quality trophic state in 2021.
The figure is up 34.9% on the previous year and down 42.0% over five years.
That places Southern Africa 10th out of 30 groups with data for 2021, putting it in the middle of the range.
Lake water quality trophic state in Southern Africa, year by year
| Year | Value | Change |
|---|---|---|
| 2017 | 3.9% | — |
| 2018 | 3.0% | -23.8% |
| 2019 | 2.0% | -33.4% |
| 2020 | 1.7% | -15.3% |
| 2021 | 2.3% | +34.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 3.0% | 2.0% | 3.9% | 3 |
| 2020s | 2.0% | 1.7% | 2.3% | 2 |
Countries ranked near Southern Africa
- 7 South Sudan 7.1% compare
- 8 Kyrgyzstan 7.0% compare
- 9 Chile 6.0% compare
- 10 Peru 5.8% compare
- 11 Mozambique 4.8% compare
- 12 Canada 4.3% compare
- 13 United Kingdom of Great Britain and Northern Ireland 4.0% compare
More environment data for Southern Africa
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Historical exposure to drought — Cropland soil moisture anomaly 7.61 Percentage change (2025)
- Historical exposure to drought — Land soil moisture anomaly 4.17 Percentage change (2025)
- Temperature change 0.892 °C (2025)
- Standard Deviation 0.282 °C (2025)
- Industrial roundwood — Export quantity 427,327 m3 (2024)
- Industrial roundwood, non-coniferous — Production 9.63 million m3 (2024)
- Industrial roundwood — Import value 35,013 1000 USD (2024)
- Industrial roundwood — Import quantity 161,260 m3 (2024)
- Industrial roundwood — Production 17.26 million m3 (2024)
Frequently asked questions
- What is lake water quality trophic state in Southern Africa?
- Lake water quality trophic state in Southern Africa was 2.3% in 2021, according to United Nations Statistics Division, SDG Global Database.
- What is the highest lake water quality trophic state recorded in Southern Africa?
- The highest recorded value was 3.9% in 2017.
- What is the lowest lake water quality trophic state recorded in Southern Africa?
- The lowest recorded value was 1.7% in 2020.
- How does Southern Africa rank for lake water quality trophic state?
- Southern Africa ranks 10th out of 30 groups with data for 2021.
- Where does this Southern 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).