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Environmental information systems
Biochemical oxygen demand in European rivers
Chart (static)
Note:
This figure shows the trends in biochemical oxygen demand (BOD) in European rivers.
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bod-rivers-5.csv
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- Waterbase - Water Quality ICM, 2022, European Environment Agency (EEA)
- Albania
- Austria
- Belgium
- Bulgaria
- Croatia
- Cyprus
- Czechia
- Estonia
- Finland
- Ireland
- Italy
- Latvia
- Lithuania
- North Macedonia
- Poland
- Romania
- Serbia
- Slovakia
- Slovenia
- Spain
- Sweden
1992-2021
Two time series are shown – a longer time series representing fewer water bodies and a shorter time series representing more water bodies.
Biochemical oxygen demand (BOD) in rivers: The number of river monitoring sites included per country is given in parenthesis:
1992-2021: Albania (4), Austria (1), Belgium (26), Bulgaria (56), Czechia (22), Estonia (33), Finland (5), Ireland (3), Latvia (13), Lithuania (22), North Macedonia (4), Slovakia (8), Slovenia (8), Spain (78), Sweden (1).
2000-2021: Albania (5), Austria (1), Belgium (36), Bulgaria (73), Croatia (23), Cyprus (4), Czechia (22), Estonia (35), Finland (5), Ireland (14), Italy (44), Latvia (16), Lithuania (22), North Macedonia (8), Poland (90), Romania (88), Serbia (33), Slovakia (8), Slovenia (10), Spain (177), Sweden (1).
Methodology
The data series are calculated as the average of annual mean concentrations for river sites in Europe. Only complete time series after inter/extrapolation are included (see indicator's "Methodology" section). BOD7 data has been recalculated into BOD5 data.