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Nitrate concentrations in rivers 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 included per sea region is given in parentheses.
Located in Data and maps › Maps and graphs
Reference Waterbase - Monitoring stations for rivers and lakes: Water quality monitoring stations in rivers and lakes
Located in Data and maps › Maps and graphs
Reference Waterbase - Monitoring stations for rivers and lakes: Water quality monitoring stations in rivers and lakes
Located in Data and maps › Maps and graphs
Reference Waterbase - Monitoring stations for rivers and lakes: Water quality monitoring stations in rivers and lakes
Located in Data and maps › Maps and graphs
Nitrate concentrations in groundwater 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 groundwater bodies (GWBs) in the region. Only complete series after inter/extrapolation are included (see indicator specification). The number of groundwater bodies included per geographical region is given in parentheses.
Located in Data and maps › Maps and graphs
Nutrients in transitional, coastal and marine waters (CSI 021) - Assessment published Nov 2005: Phosphate concentrations in some coastal sea areas of the Baltic and North Seas have decreased over recent years, but they have remained stable in the Celtic Sea and increased in some Italian coastal areas. Nitrate concentrations have generally remained stable over recent years in the Baltic, North and Celtic Seas but have increased in some Italian coastal areas.
Located in Data and maps › Indicators › Nutrients in transitional, coastal and marine waters
Nitrate concentrations in rivers 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
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
Nitrate Directive interactive maps: Located in Environmental topics › Water › Interactive maps and data viewers by category
Council Directive (91/676/EEC) 12 December 1991: Council Directive of 12 December 1991 concerning the protection of waters against pollution caused by nitrates from agricultural sources (91/676/EEC).
Located in Environmental policy document catalogue