-
Phosphorus concentrations in rivers (orthophosphate) between 1992 and 2010 in 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 per sea region is given in parentheses.
Located in
Data and maps
›
Maps and graphs
-
Phosphorus concentrations in lakes (total phosphorus) between 1992 and 2010 in different geographical regions of Europe.
-
The data series per region are calculated as the average of the annual mean for river monitoring stations in the region. Only complete series after inter/extrapolation are included (see indicator specification). There were no stations with complete series after inter/extrapolation in the South and Southeast regions. The number of lake monitoring stations included per geographical region is given in parentheses
Located in
Data and maps
›
Maps and graphs
-
Phosphorus concentrations in rivers (orthophosphate) between 1992 and 2010 in different geographical regions of Europe.
-
The data series per region are calculated as the average of the annual mean for river monitoring stations in the region. Only complete series after inter/extrapolation are included (see indicator specification). The number of river monitoring stations included per geographical region is given in parentheses
Located in
Data and maps
›
Maps and graphs
-
Phosphorus concentrations in rivers (orthophosphate) between 1992 and 2008 in different geographical regions of Europe.
-
The data series per region are calculated as the average of the annual mean for river monitoring stations in the region. Only complete series after inter/extrapolation are included (see indicator specification). The number of river monitoring stations included per geographical region is given in parentheses
Located in
Data and maps
›
Maps and graphs
-
Trend in median total ammonium, total phosphorus and nitrate concentration of river water bodies, grouped by ecological status/potential class
-
Concentrations are expressed as a median of annual mean concentrations. Up to three-year gaps of missing values have been interpolated or extrapolated. Only complete series with no missing values after this interpolation/extrapolation are included. The number of time series/river stations is shown in parentheses. The trend for 1992 to 2010 for each of the ecological quality classes has been linearly extended to 2027 — or when the concentration level becomes negative.
Located in
Data and maps
›
Maps and graphs
-
Nutrients in freshwater (CSI 020) - Assessment published Oct 2012
-
Average nitrate concentrations in European groundwaters increased from 1992 to 1998, but have declined again since 2004.
The average nitrate concentration in European rivers decreased by approximately 11% between 1992 and 2010 (from 2.5 to 2.2 mg/l N), reflecting the effect of measures to reduce agricultural inputs of nitrate as well as improvement in wastewater treatment.
Average orthophosphate concentrations in European rivers have decreased markedly over the last two decades, being more than halved between 1992 and 2010 (54% decrease). Also average lake phosphorus concentration decreased over the period 1992-2010 (by 31%), the major part of the decrease occurring in the beginning of the period, but is still ongoing. The decrease in phosphorus concentrations reflects both improvement in wastewater treatment and reduction in phosphorus in detergents.
Overall, reductions in the levels of freshwater nutrients over the last two decades primarily reflect improvements in wastewater treatment. Emissions from agriculture continue to be a significant source.
Located in
Data and maps
›
Indicators
›
Nutrients in freshwater
-
Nutrients in freshwater (CSI 020) - Assessment DRAFT created Apr 2012
-
• Average nitrate concentrations in European groundwaters increased from 1992 to 1998, but have declined again since 2004.
• The average nitrate concentration in European rivers decreased by approximately 13% between 1992 and 2009 (from 2.5 to 2.1 mg/l N), reflecting the effect of measures to reduce agricultural inputs of nitrate.
• Average orthophosphate concentrations in European rivers have decreased markedly over the last two decades, being halved between 1992 and 2009 (52% decrease). Also average lake phosphorus concentration decreased over the period 1992-2009 (by 22%), the major part of the decrease occurring in the first half of the period. The decrease in phosphorus concentrations reflects both improvement in wastewater treatment and reduction in phosphorus in detergents.
• Overall, reductions in the levels of freshwater nutrients over the last two decades primarily reflect improvements in wastewater treatment. Emissions from agriculture continue to be a significant source.
Located in
Data and maps
›
Indicators
›
Nutrients in freshwater
-
Phosphorus concentrations in rivers (orthophosphate) between 1992 and 2009 in different geographical regions of Europe.
-
The data series per region are calculated as the average of the annual mean for river monitoring stations in the region. Only complete series after inter/extrapolation are included (see indicator specification). The number of river monitoring stations included per geographical region is given in parentheses
Located in
Data and maps
›
Maps and graphs
-
Phosphorus concentrations in lakes (total phosphorus) between 1992 and 2009 in different geographical regions of Europe.
-
The data series per region are calculated as the average of the annual mean for lake monitoring stations in the region. Only complete series after inter/extrapolation are included (see indicator specification). There were no stations with complete series after inter/extrapolation in the South and Southeast regions. The number of lake monitoring stations included per geographical region is given in parentheses
Located in
Data and maps
›
Maps and graphs
-
Phosphorus concentrations in rivers (orthophosphate) between 1992 and 2009 in 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 per region is given in parentheses.
Located in
Data and maps
›
Maps and graphs
Twitter
Facebook
YouTube channel
RSS Feeds
Write to us
Call us
Upcoming environmental events around the world
