Biochemical oxygen demand in rivers in Slovakia
Slovakia: Biochemical oxygen demand in rivers was 2.16 Milligrams per litre in 2023. ▼ Falling
Biochemical oxygen demand in rivers in Slovakia, 2007–2023
Source: Eurostat. Measured in Milligrams per litre.
Analysis
Slovakia recorded 2.16 Milligrams per litre for biochemical oxygen demand in rivers in 2023. That is the lowest value across all 17 years on record.
Compared with earlier readings it is down 0.5% on the previous year and down 8.1% over ten years.
Over the whole period, biochemical oxygen demand in rivers in Slovakia peaked at 2.52 Milligrams per litre in 2007 and was at its lowest, 2.16 Milligrams per litre, in 2023.
That places Slovakia 11th out of 28 countries with data for 2023, putting it in the middle of the range.
The long-run direction has been consistently falling across the 17 years of available data.
Biochemical oxygen demand in rivers in Slovakia, year by year
| Year | Milligrams per litre | Change |
|---|---|---|
| 2007 | 2.52 Milligrams per litre | — |
| 2008 | 2.48 Milligrams per litre | -1.6% |
| 2009 | 2.45 Milligrams per litre | -1.2% |
| 2010 | 2.42 Milligrams per litre | -1.2% |
| 2011 | 2.39 Milligrams per litre | -1.2% |
| 2012 | 2.37 Milligrams per litre | -0.8% |
| 2013 | 2.35 Milligrams per litre | -0.8% |
| 2014 | 2.33 Milligrams per litre | -0.9% |
| 2015 | 2.31 Milligrams per litre | -0.9% |
| 2016 | 2.29 Milligrams per litre | -0.9% |
| 2017 | 2.27 Milligrams per litre | -0.9% |
| 2018 | 2.25 Milligrams per litre | -0.9% |
| 2019 | 2.23 Milligrams per litre | -0.9% |
| 2020 | 2.21 Milligrams per litre | -0.9% |
| 2021 | 2.19 Milligrams per litre | -0.9% |
| 2022 | 2.17 Milligrams per litre | -0.9% |
| 2023 | 2.16 Milligrams per litre | -0.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 2.48 Milligrams per litre | 2.45 Milligrams per litre | 2.52 Milligrams per litre | 3 |
| 2010s | 2.32 Milligrams per litre | 2.23 Milligrams per litre | 2.42 Milligrams per litre | 10 |
| 2020s | 2.18 Milligrams per litre | 2.16 Milligrams per litre | 2.21 Milligrams per litre | 4 |
Countries ranked near Slovakia
- 8 Poland 2.47 Milligrams per litre compare
- 8 Poland 2.47 Milligrams per litre compare
- 10 Serbia 2.39 Milligrams per litre compare
- 11 Slovakia 2.16 Milligrams per litre compare
- 13 Belgium 1.93 Milligrams per litre compare
- 13 Lithuania 1.93 Milligrams per litre compare
- 13 Lithuania 1.93 Milligrams per litre compare
More reference data data for Slovakia
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- Cooling and heating degree days by NUTS 2 regions - monthly data -5.95 % change on previous year (2025)
- Cooling and heating degree days by NUTS 2 regions - annual data 3,041 Number (2025)
- Cooling and heating degree days by NUTS 2 regions - monthly data 488.11 Number (2025)
- Victims in road accidents by NUTS 2 region 262 Number (2024)
- Stock of vehicles by category and NUTS 2 region 3.12 million Number (2024)
- Physicians by NUTS 2 region 21,403 Number (2024)
- Deaths (total) by NUTS 3 region 53,876 Number (2024)
- Establishments, bedrooms and bed-places in tourist accommodation, by 4,176 Number (2025)
- Deaths by age, sex and NUTS 2 region 53,876 Number (2024)
Frequently asked questions
- What is biochemical oxygen demand in rivers in Slovakia?
- Biochemical oxygen demand in rivers in Slovakia was 2.16 Milligrams per litre in 2023, according to Eurostat.
- What is the highest biochemical oxygen demand in rivers recorded in Slovakia?
- The highest recorded value was 2.52 Milligrams per litre in 2007.
- What is the lowest biochemical oxygen demand in rivers recorded in Slovakia?
- The lowest recorded value was 2.16 Milligrams per litre in 2023.
- How does Slovakia rank for biochemical oxygen demand in rivers?
- Slovakia ranks 11th out of 28 countries with data for 2023.
- Is biochemical oxygen demand in rivers rising or falling in Slovakia?
- Over the last ten years it is down 8.1%. The long-run trend across the full record is falling.
- Where does this Slovakia 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.
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