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Daviz Visualization Inland bathing water quality in the European Union
Located in Data and maps Data visualisations
Daviz Visualization D source code River water quality
Located in Data and maps Data visualisations
Indicator Assessment Oxygen consuming substances in rivers
Concentrations of biochemical oxygen demand (BOD) and total ammonium have decreased in European rivers in the period 1992 to 2012 (Fig. 1), mainly due to general improvement in waste water treatment.
Located in Data and maps Indicators Oxygen consuming substances in rivers
Indicator Assessment Nutrients in freshwater
Since 2005, average nitrate concentrations in European groundwater have declined and in 2011, the mean concentration had almost returned to the 1992 level. The average nitrate concentration in European rivers declined by 0.03 milligrams per liter of nitrogen (mg N/l) (0.8%) per year over the period 1992 to 2012. The decline in nitrate concentration reflects the effect of measures to reduce agricultural inputs of nitrate, as well as improvements in wastewater treatment. Average orthophosphate concentration in European rivers has decreased markedly over the last two decades (0.003 milligrams per liter of phosphorous (mg P/l) or 2.1% per year). Also, average lake phosphorus concentration decreased over the period 1992-2012 (0.0004 mg P/l, or 0.8% per year). The decrease in phosphorus concentration reflects both improvements in wastewater treatment and the reduction of phosphorus in detergents.
Located in Data and maps Indicators Nutrients in freshwater
Briefing Freshwater quality — nutrients in rivers
Located in SOER 2015 — The European environment — state and outlook 2015 Cross-country comparisons
Data Waterbase - Rivers
Waterbase is the generic name given to the EEA's databases on the status and quality of Europe's rivers, lakes, groundwater bodies and transitional, coastal and marine waters, and on the quantity of Europe's water resources
Located in Data and maps Datasets
Data Waterbase - Groundwater
Waterbase is the generic name given to the EEA's databases on the status and quality of Europe's rivers, lakes, groundwater bodies and transitional, coastal and marine waters, and on the quantity of Europe's water resources
Located in Data and maps Datasets
Data Waterbase - Emissions to water
Emissions to water are an important element (describing the pressure) in assessment of the state of Europe’s environment (SoE). This database contains data on emissions of nutrients and hazardous substances to water, aggregated within River Basin Districts (RBDs), in the EEA member countries. The reporting process, endorsed by the Water Directors, and this publication of the data, enables all stakeholders to use the data and contributes to streamlining with other reporting processes.
Located in Data and maps Datasets
Figure BOD5 concentrations in rivers between 1992 and 2011 draining to different sea regions of Europe
The sea region data series are calculated as the average of annual mean data from river monitoring stations in each sea region. The data thus represents rivers or river basins draining into that particular sea. Only complete series after inter/extrapolation are included (see indicator specification). The number of river monitoring stations included per sea region is given in parentheses. There were no stations with consistent data series on BOD7 in rivers draining to the Arctic Ocean. BOD7 data has been recalculated into BOD5 data.
Located in Data and maps Maps and graphs
SOER Message (Deprecated) Freshwater quality — key message 1
Europe’s freshwaters contain a number of pollutants including nutrients, metals, pesticides, pathogenic micro-organisms, industrial chemicals and pharmaceuticals. These can have adverse effects on aquatic ecosystems, degrading habitats and resulting in the loss of freshwater flora and fauna. Poor water quality can also raise concern for human health.
Located in The European environment — state and outlook 2015 Freshwater quality — SOER 2010 thematic assessment Key messages
European Environment Agency (EEA)
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