Figure

Concentrations of nitrate and orthophosphate in rivers and total phosphorus in lakes in the period 1992–2007

Figure Created 05 Nov 2010 Published 05 Nov 2010 Last modified 29 Nov 2012

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Topics: Biodiversity — Ecosystems Water and marine environment

Total number of stations in parenthesis. Concentrations are expressed as weighted means of annual mean concentrations for rivers and lakes. Only stations with time series of seven years or more are included.

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Concentrations of nitrate and orthophosphate in rivers and total phosphorus in lakes in the period 1992–2007 - Excel file

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Rights:: EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
Owners:: European Environment Agency (EEA)
Figure type:: Graph

Additional information

The average nitrate concentration in European rivers has decreased from 2.5 to 2.1 mg N/l since 1992.
Nutrient levels in lakes are in general much lower than in rivers, but there has also been a 15 % reduction of the average concentrations in lakes.
Phosphorus concentrations in European rivers and lakes generally decreased during the last 15 years.
Between 2004 and 2007 nitrate concentrations in surface water remained stable or fell at 70 % of monitored sites and quality at 66 % of groundwater monitoring points is stable or improving (EU, 2010).

Geographical coverage:

Nitrate in rivers: Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Lithuania, Luxembourg, Norway, Poland, Slovakia, Slovenia, Spain, Sweden, Switzerland.

Orthophosphate in rivers: Austria, Belgium, Bulgaria, Denmark, Estonia, Finland, France, Germany, Lithuania, Luxembourg, Norway, Slovakia, Slovenia, Spain, Sweden, Switzerland.

Total Phosphorus in lakes: Austria, Denmark, Estonia, Finland, Hungay, Ireland, Lithuania, Latvia, Slovenia, Sweden, Switzerland.

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Geographic coverage

Austria Belgium Bulgaria Cyprus Czechia Denmark Estonia Finland France Germany Greece Hungary Ireland Italy Latvia Lithuania Luxembourg Malta Netherlands Poland Portugal Romania Slovakia Slovenia Spain Sweden United Kingdom