Data and maps

Europe’s bathing waters continue to improve: Ninety-four per cent of bathing sites in the European Union meet minimum standards for water quality, according to the European Environment Agency's annual report on bathing water quality in Europe. Water quality is excellent at 78 % of sites and almost 2 % more sites meet the minimum requirements compared to last year's report.
Located in Press room › News
Biological elements in rivers and lakes: This viewer with 4 maps shows the ecological status (i.e. status or potential) of macroinvertebrates and phytobenthos in European rivers (i.e. rivers and canals) potentially impacted by general degradation and of macrophytes and phytobenthos in European lakes (i.e. lakes and reservoirs) potentially impacted by eutrophication, respectively. The ecological status class of a country's waterbodies (or stations) is assessed by each country according to their national classification system, following the Water Framework Directive. The assessment may be based by one or more samples measured during the year of reporting. The ecological status in rivers or lakes is displayed as classified cartograms in a country-level map: it displays the distribution of status classes per country as one pie chart for each country. This can be used to compare the situation in your country with that in other countries. When the map is zoomed in to a more detailed scale individual station points are visible instead of classified cartograms.
Located in Environmental topics › Water › Interactive maps and data viewers by category
Water temperature (CLIM 019) - Assessment published Nov 2012: Water temperatures in major European rivers have increased by 1–3 °C over the last century. Several time series show increasing lake and river temperatures all over Europe over the last 60 to 90 years. Lake and river surface water temperatures are projected to increase with further projected increases in air temperature. Increased temperature can result in marked changes in species composition and functioning of aquatic ecosystems.
Located in Data and maps › Indicators › Water temperature
Water temperature of large European rivers and lakes: Annual average water temperature in River Rhine and River Meuse (1911–2010); River Danube (1901–1998), Lake Võrtsjärv (1947–2011), and average water temperature in August in Lake Saimaa, Finland (1924–2011).
Located in Data and maps › Maps and graphs
Projected change in minimum river flow with return period of 20 years: Relative change in minimum river flow for a) 2020s, b) 2050s and c) 2080s compared to 1961-1990 for SRES A1B scenario.
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
Projected change in river floods with a return period of 100 years: Projected change in the level of a 100-year maximum level of river discharge between the reference period 1961–1990 and the 2020s (left), 2050s (centre) and 2050s (right) based on an ensemble of 12 RCM simulations with LISFLOOD for the SRES A1B scenario.
Located in Data and maps › Maps and graphs
Conservation status of river and lake habitat types and species, and conservation status of coastal and transitional waters habitat types of European interest: -
Located in Data and maps › Maps and graphs
Chemical status of rivers and lakes per RBD — percentage of water bodies not achieving good chemical status: -
Located in Data and maps › Maps and graphs
Chemical status of rivers and lakes: The graphs illustrate the chemical status of river and lake water bodies as percentage of water bodies in poor and good chemical status, by count of water bodies.
Located in Data and maps › Maps and graphs