Lake water quality trophic state in Sub-Saharan Africa
Sub-Saharan Africa: Lake water quality trophic state was 3.6% in 2021. ▬ Flat
Latest (2021)
3.6%
Change on year
up 19.6%
Rank
2nd
of 30 groups
All-time high
3.6%
in 2017
All-time low
3.0%
in 2020
Years of data
5
2017–2021
Lake water quality trophic state in Sub-Saharan Africa, 2017–2021
Source: United Nations Statistics Division, SDG Global Database.
Analysis
The most recent figure for lake water quality trophic state in Sub-Saharan Africa is 3.6%, measured in 2021.
That represents a change of up 19.6% on the previous year and down 0.4% over five years.
Sub-Saharan Africa ranks 2nd of 30 groups on this measure, in the top 10%.
Lake water quality trophic state in Sub-Saharan Africa, year by year
| Year | Value | Change |
|---|---|---|
| 2017 | 3.6% | — |
| 2018 | 3.3% | -7.0% |
| 2019 | 3.3% | +0.1% |
| 2020 | 3.0% | -10.5% |
| 2021 | 3.6% | +19.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 3.4% | 3.3% | 3.6% | 3 |
| 2020s | 3.3% | 3.0% | 3.6% | 2 |
Countries ranked near Sub-Saharan Africa
More environment data for Sub-Saharan Africa
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Historical exposure to drought — Land soil moisture anomaly -7.11 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -6.36 Percentage change (2025)
- Standard Deviation 0.223 °C (2025)
- Temperature change 1.21 °C (2025)
- Nitrous oxide (N2O) emissions (total) excluding LULUCF 305.43 Mt CO2e (2024)
- Aquaculture production 904,662 metric tons (2024)
- Nitrous oxide (N2O) emissions from Power Industry (Energy) 2.29 Mt CO2e (2024)
- Nitrous oxide (N2O) emissions from Transport (Energy) 2.96 Mt CO2e (2024)
- Permanent meadows and pastures — Share in Agricultural land 72.81 % (2024)
Frequently asked questions
- What is lake water quality trophic state in Sub-Saharan Africa?
- Lake water quality trophic state in Sub-Saharan Africa was 3.6% in 2021, according to United Nations Statistics Division, SDG Global Database.
- What is the highest lake water quality trophic state recorded in Sub-Saharan Africa?
- The highest recorded value was 3.6% in 2017.
- What is the lowest lake water quality trophic state recorded in Sub-Saharan Africa?
- The lowest recorded value was 3.0% in 2020.
- How does Sub-Saharan Africa rank for lake water quality trophic state?
- Sub-Saharan Africa ranks 2nd out of 30 groups with data for 2021.
- Where does this Sub-Saharan 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).