Lake water quality trophic state in Western Africa
Western Africa: Lake water quality trophic state was 1.6% in 2021. ▲ Rising
Latest (2021)
1.6%
Change on year
up 5.6%
Rank
19th
of 30 groups
All-time high
1.6%
in 2021
All-time low
1.2%
in 2019
Years of data
5
2017–2021
Lake water quality trophic state in Western Africa, 2017–2021
Source: United Nations Statistics Division, SDG Global Database.
Analysis
In 2021, lake water quality trophic state in Western Africa stood at 1.6%. That is the highest value across all 5 years on record.
Compared with earlier readings it is up 5.6% on the previous year and up 15.4% over five years.
Western Africa ranks 19th of 30 groups on this measure, in the middle of the range.
Lake water quality trophic state in Western Africa, year by year
| Year | Value | Change |
|---|---|---|
| 2017 | 1.3% | — |
| 2018 | 1.5% | +10.3% |
| 2019 | 1.2% | -18.3% |
| 2020 | 1.5% | +21.2% |
| 2021 | 1.6% | +5.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 1.3% | 1.2% | 1.5% | 3 |
| 2020s | 1.5% | 1.5% | 1.6% | 2 |
Countries ranked near Western Africa
More environment data for Western Africa
- Historical exposure to drought — Cropland soil moisture anomaly -6.59 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Historical exposure to drought — Land soil moisture anomaly -6.69 Percentage change (2025)
- Temperature change 1.37 °C (2025)
- Standard Deviation 0.311 °C (2025)
- Wood fuel — Production 221.11 million m3 (2024)
- Roundwood, coniferous — Production 51,000 m3 (2024)
- Wood fuel, coniferous — Production 0 m3 (2024)
- Wood fuel, non-coniferous — Production 221.11 million m3 (2024)
- Industrial roundwood — Production 20.68 million m3 (2024)
Frequently asked questions
- What is lake water quality trophic state in Western Africa?
- Lake water quality trophic state in Western Africa was 1.6% in 2021, according to United Nations Statistics Division, SDG Global Database.
- What is the highest lake water quality trophic state recorded in Western Africa?
- The highest recorded value was 1.6% in 2021.
- What is the lowest lake water quality trophic state recorded in Western Africa?
- The lowest recorded value was 1.2% in 2019.
- How does Western Africa rank for lake water quality trophic state?
- Western Africa ranks 19th out of 30 groups with data for 2021.
- Where does this Western 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).