Figure
Biochemical oxygen demand and ammonium in European Rivers
European data
Metadata
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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).
Left chart:
BOD7 data has been recalculated into BOD5 data. Two time series are shown – a longer time series representing fewer water bodies and a shorter time series representing more water bodies.Right chart:
Two time series are shown – a longer time series representing fewer water bodies and a shorter time series representing more water bodies.-
Units:
Left chart: mg O2/l
Right chart: µg NH4-N/l-
Rights:
- EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
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Owners:
- European Environment Agency (EEA)
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Processors:
- TC Vode
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Figure type:
- Graph
Additional information
The geographical coverage is the 38 EEA member countries, but only complete time series are included in the analysis.
Left chart:
BOD in rivers: The number of river monitoring sites included per country is given in parenthesis:
1992-2020: Albania (4), Austria (44), Belgium (26), Bulgaria (57), Czechia (22), Estonia (33), Finland (5), Ireland (3), Latvia (13), Lithuania (22), North Macedonia (4), Slovakia (8), Slovenia (8), Spain (78), Sweden (1).
2000-2020: Albania (5), Austria (46), Belgium (36), Bulgaria (74), 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 (34), Slovakia (8), Slovenia (10), Spain (179), Sweden (1).
Right chart:
Ammonium in rivers: The number of river monitoring sites included per country is given in parenthesis:
1992-2020: Albania (4), Austria (30), Belgium (20), Bulgaria (38), Estonia (35), Finland (60), France (160), Germany (119), Ireland (4), Latvia (12), Lithuania (21), North Macedonia (5), Norway (29), Slovenia (9), Spain (22), Sweden (111).
2000-2020: Albania (8), Austria (46), Belgium (23), Bulgaria (57), Croatia (23), Estonia (37), Finland (69), France (237), Germany (122), Iceland (1), Ireland (10), Italy (25), Latvia (15), Lithuania (22), North Macedonia (18), Norway (29), Poland (4), Romania (89), Serbia (34), Slovenia (10), Spain (55), Sweden (113).
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Geographic coverage
Temporal coverage
For references, please go to https://www.eea.europa.eu/data-and-maps/figures/biochemical-oxygen-demand-and-ammonium-1 or scan the QR code.
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