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Phosphorus concentrations in rivers (orthophosphate) between 1992 and 2009 in different sea regions of Europe
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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.
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Trends in mean winter orthophosphate concentrations in the Atlantic, Baltic Sea, Greater North Sea, Skagerrak and part of the Mediterranean in 1985–2005
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Numbers in parentheses indicate number of stations included in the analysis for each country
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Reference Waterbase - Monitoring stations for rivers and lakes
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Water quality monitoring stations in rivers and lakes
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Reference Waterbase - Monitoring stations for rivers and lakes
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Water quality monitoring stations in rivers and lakes
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Reference Waterbase - Monitoring stations for rivers and lakes
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Water quality monitoring stations in rivers and lakes
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Phosphorus concentrations in lakes (total phosphorus) between 1992 and 2009 in different geographical regions of Europe.
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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
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Nutrients in transitional, coastal and marine waters (SEBI 015) - Assessment published May 2010
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In countries that reported data, 85 % of stations reported no changes in oxidised nitrogen levels in transitional, coastal and marine waters in the period 1985 - 2005 and 82 % reported no change for orthophosphate. At stations that identified changes, decreases were more common than increases.
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Nutrients in transitional, coastal and marine waters
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Nutrients in freshwater (CSI 020) - Assessment DRAFT created Apr 2012
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• 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.
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Nutrients in freshwater
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Phosphorus concentrations in rivers (orthophosphate) between 1992 and 2008 in different geographical regions of Europe.
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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
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Phosphorus concentrations in lakes (total phosphorus) between 1992 and 2008 in different geographical regions of Europe.
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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
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