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Indicator Assessment Oxygen consuming substances in rivers (CSI 019/WAT 002) - Assessment published Feb 2015
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
Daviz Visualization Lakes - total phosphorus
Located in Data and maps Data visualisation
Indicator Assessment Nutrients in freshwater (CSI 020/WAT 003) - Assessment published Feb 2015
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
Located in SOER 2015 — The European environment — state and outlook 2015 European briefings
Highlight River basin management relies on effective public participation
Rivers are home of many thousands of wildlife species, vital arteries for farmland, a source of cooling for industry, flood regulation, navigation channels and source of drinking water, to name just a few important functions. Such multiple demands on water bodies mean that many different groups need to be actively involved in managing a river basin.
Located in News
Daviz Visualization Phosphorus concentrations in lakes (total phosphorus) between 1992 and 2011 in different geographical regions of Europe.
Located in Data and maps Data visualisation
Daviz Visualization Nitrate concentrations in rivers between 1992 and 2011 in different geographical regions of Europe.
Located in Data and maps Data visualisation
Daviz Visualization Nitrate concentrations in groundwater between 1992 and 2011 in different geographical regions of Europe.
Located in Data and maps Data visualisation
Daviz Visualization Nitrate concentrations in rivers between 1992 and 2011 in different sea regions of Europe.
Located in Data and maps Data visualisation
Daviz Visualization Average concentrations of nutrients in European groundwater and surface waters (1992-2011)
Located in Data and maps Data visualisation
European Environment Agency (EEA)
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