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Figure 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.
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GIS Map Application Orthophosphates in rivers
The map shows the mean annual concentration of orthophosphates (OP), expressed as milligrams of PO4-P per litre of water, observed in river monitoring stations and reported by EEA member countries via WISE. For most countries the mean annual value is based on observations over the whole year, whereas some countries only collect samples during the growing season (due to ice cover in winter). High or increased (compared to reference condition) concentration of phosphates represents a risk to normal functioning of river ecosystems, causing eutrophication with potentially excessive growth of benthic algae or other aquatic vegetation, oxygen deficiency in the bottom substrate and reduced biodiversity. The purpose of the map is to provide an overview of the mean annual value of orthophosphates in rivers across Europe and to enable the user to compare values per country, River Basin District (RBD) or individual monitoring station, depending on the scale of visualisation. Historical data since 1993 can be displayed using the time slider.
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Figure Phosphorus concentrations in rivers (orthophosphate) between 1992 and 2011 in different geographical regions of Europe.
The data series per region are calculated as the average of the annual mean concentrations 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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Figure Observed changes in winter orthophosphate (PO4) concentrations, 1985–2010
The map shows stations with a statistically significant decrease (green), increase (red) or no trend (yellow) in winter ortophosphate concentrationswithin the period 1985-2010. Selected stations must have at least data in the period from 2007 to present and at least 5 years data in all.
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Figure Annual average river orthophosphate concentration (mg/l as PO4-P) in 2008, by river basin district
The map shows the annual average river orthophosphate concentration by river basin district (mg/l as PO4-P) in 2008
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Figure Annual average phosphorus concentration in rivers
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Figure Concentrations of total ammonium, BOD, nitrate, and orthophos-phates in European rivers between 1992 and 2001
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Figure Average pollution concentrations for European rivers
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Figure Phosphorus in European rivers, 1994-96
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Figure Phosphorus concentrations in lakes (total phosphorus) between 1992 and 2011 in different geographical regions of Europe.
The data series per region are calculated as the average of the annual mean concentrations 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
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European Environment Agency (EEA)
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1050 Copenhagen K
Denmark
Phone: +45 3336 7100