Biochemical oxygen demand in rivers in Estonia
Estonia: Biochemical oxygen demand in rivers was 1.47 Milligrams per litre in 2023. ▼ Falling
Biochemical oxygen demand in rivers in Estonia, 2007–2023
Source: Eurostat. Measured in Milligrams per litre.
Analysis
In 2023, biochemical oxygen demand in rivers in Estonia stood at 1.47 Milligrams per litre. That is the lowest value across all 17 years on record.
Compared with earlier readings it is down 0.7% on the previous year and down 8.1% over ten years.
Over the whole period, biochemical oxygen demand in rivers in Estonia peaked at 1.6 Milligrams per litre in 2012 and was at its lowest, 1.47 Milligrams per litre, in 2023.
That places Estonia 22nd out of 28 countries with data for 2023, putting it in the bottom quarter.
The long-run direction has been consistently falling across the 17 years of available data.
Biochemical oxygen demand in rivers in Estonia, year by year
| Year | Milligrams per litre | Change |
|---|---|---|
| 2007 | 1.58 Milligrams per litre | — |
| 2008 | 1.58 Milligrams per litre | +0.0% |
| 2009 | 1.58 Milligrams per litre | +0.0% |
| 2010 | 1.59 Milligrams per litre | +0.6% |
| 2011 | 1.59 Milligrams per litre | +0.0% |
| 2012 | 1.6 Milligrams per litre | +0.6% |
| 2013 | 1.6 Milligrams per litre | +0.0% |
| 2014 | 1.6 Milligrams per litre | +0.0% |
| 2015 | 1.59 Milligrams per litre | -0.6% |
| 2016 | 1.58 Milligrams per litre | -0.6% |
| 2017 | 1.57 Milligrams per litre | -0.6% |
| 2018 | 1.55 Milligrams per litre | -1.3% |
| 2019 | 1.53 Milligrams per litre | -1.3% |
| 2020 | 1.51 Milligrams per litre | -1.3% |
| 2021 | 1.49 Milligrams per litre | -1.3% |
| 2022 | 1.48 Milligrams per litre | -0.7% |
| 2023 | 1.47 Milligrams per litre | -0.7% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 1.58 Milligrams per litre | 1.58 Milligrams per litre | 1.58 Milligrams per litre | 3 |
| 2010s | 1.58 Milligrams per litre | 1.53 Milligrams per litre | 1.6 Milligrams per litre | 10 |
| 2020s | 1.49 Milligrams per litre | 1.47 Milligrams per litre | 1.51 Milligrams per litre | 4 |
Countries ranked near Estonia
More reference data data for Estonia
- Cooling and heating degree days by NUTS 2 regions - annual data 1.52 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data -4.4 % change on previous year (2025)
- Exposure to extreme precipitation — Annual precipitation change 52.32 Millimetres per year (2023)
- Exposure to extreme temperature — Annual temperature change 1.22 Degrees celsius (2023)
- Cooling and heating degree days by NUTS 2 regions - monthly data 502.94 Number (2025)
- Cooling and heating degree days by NUTS 2 regions - annual data 3,730 Number (2025)
- IPAC Dashboard indicators — Geothermal 0 Index (2025)
- Africa's Development Dynamics (AfDD) Table 08 - Sectoral breakdown of 42.78 Percentage of GDP (2022)
- Africa's Development Dynamics (AfDD) Table 08 - Sectoral breakdown of 20.47 Percentage of GDP (2022)
- Africa's Development Dynamics (AfDD) Table 08 - Sectoral breakdown of 6.67 Percentage of GDP (2022)
Frequently asked questions
- What is biochemical oxygen demand in rivers in Estonia?
- Biochemical oxygen demand in rivers in Estonia was 1.47 Milligrams per litre in 2023, according to Eurostat.
- What is the highest biochemical oxygen demand in rivers recorded in Estonia?
- The highest recorded value was 1.6 Milligrams per litre in 2012.
- What is the lowest biochemical oxygen demand in rivers recorded in Estonia?
- The lowest recorded value was 1.47 Milligrams per litre in 2023.
- How does Estonia rank for biochemical oxygen demand in rivers?
- Estonia ranks 22nd out of 28 countries with data for 2023.
- Is biochemical oxygen demand in rivers rising or falling in Estonia?
- Over the last ten years it is down 8.1%. The long-run trend across the full record is falling.
- Where does this Estonia data come from?
- The figures come from Eurostat, published as part of Biochemical oxygen demand in rivers. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 17 observations, free to reuse under CC BY 4.0 (Eurostat).