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Data Waterbase - Rivers
Waterbase is the generic name given to the EEA's databases on the status and quality of Europe's rivers, lakes, groundwater bodies and transitional, coastal and marine waters, and on the quantity of Europe's water resources
Located in Data and maps Datasets
Press Release Troff document Water quality excellent at most of Europe's bathing sites
The water at Europe's beaches, rivers and lakes was generally of high quality in 2013, with 95 % of these sites meeting minimum requirements. Coastal sites performed slightly better than inland bathing waters, the data shows.
Located in Media News
Daviz Visualization Changes in water quality variables during the last two decades
Located in Data and maps Data visualisations
Figure Proportion of classified surface water bodies in different RBDs holding less than good ecological status or potential, for rivers and lakes
The figure shows percentage of the total number of classified water bodies.
Located in Data and maps Maps and graphs
Daviz Visualization Distribution of ecological status or potential of classified rivers, lakes, coastal and transitional waters, by count of water bodies
Located in Data and maps Data visualisations
GIS Map Application WISE SoE Ammonium in Rivers
The map shows the mean annual concentrations of total ammonium (TA) as mg/L N-NH4in European rivers measured at WISE SoE River monitoring stations from 1992 till 2011. All data are annual means. For most countries these are based on measurements over the whole year, but for some countries the annual mean actually represents only the growing season (due to ice cover in winter).The purpose of the map is to provide an overview of the annual concentrations of the total ammonium/ammonium in rivers across Europe and to enable viewer to make comparisons of the values in European countries or individual monitoring sites. NH4 is the empirical formula of the ammonium ion which, in water, is an important nitrogenous fertilizer for aquatic plants. In excess ammonium can give rise to problems because it contributes indirectly to BOD by reducing Dissolved Oxygen concentrations in water. It also forms ammonium hydroxide in water and is extremely toxic to fish and aquatic life at elevated pH levels.Total ammonium concentrations are normally increased as a result of discharges from waste water treatment plants, industrial effluents and agricultural runoff. It exerts a demand on oxygen in water as it is transformed to oxidised forms of nitrogen. In addition it is toxic to aquatic life at certain concentrations in relation to water temperature, salinity and pH. It can also pollute water used for drinking and bathing. In less detailed scale data is aggregated by country and pie charts are displayed. In more detailed scale individual stations appear in shape of triangles. Historical data (from 1992 on) can be displayed and viewed with time slider tool.
Located in Data and maps Interactive maps
GIS Map Application WISE SoE BOD in rivers
This map shows the mean annual concentrations of BOD (Biochemical oxygen demand) measured at Eionet-Water River monitoring stations from 1992 till 2011. All data are annual means. The purpose of the map is to provide an overview of the annual concentrations of BOD in rivers across Europe and to enable viewer to make comparisons of the values in European countries, River basin districts or in individual monitoring sites. BOD (Biological - or biochemical - Oxygen Demand) refers to the amount of organic matter present in water that will consume oxygen as it is decomposed by micro-organisms. BOD is commonly used for 5-day BOD (BOD5); for those Member States reporting 7-day BOD (BOD7), these values have been converted to BOD5 (BOD7 = 1.16 BOD5) for reasons of comparability.Large quantities of organic matter (microbes and decaying organic waste) in water are a potential risk to aquatic ecosystems and human health. A reduction in the amount of oxygen in water as a result of the decomposition of organic matter can endanger aquatic life through asphyxiation and disrupt the ecological balance of the water. It can also pollute water used for drinking and bathing. High levels of BOD can indicate such pollution. In less detailed scale, data is aggregated by country and pie charts are displayed. In more detailed scale individual stations appear in shape of triangles. Historical data (from 1992 on) can be displayed and viewed with time slider tool.
Located in Data and maps Interactive maps
GIS Map Application Macroinvertebrates in rivers
This map shows the ecological status (i.e. status or potential) of macroinvertebrates in European rivers (i.e. rivers and canals) potentially impacted by general degradation. 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 purpose of this map is to show ecological status of individual biological quality elements (BQEs) and the major impact types. In comparison, the map layer "Ecological status or potential of water bodies" in the WFD Surface Water Viewer (http://www.eea.europa.eu/themes/water/interactive/soe-wfd/wfd-surface), displays ecological status or potential based on all BQEs combined, represented by the BQE with the worst class (the "one-out-all-out" principle). Moreover, the maps based on SoE-WISE biological data will be updated yearly, whereas the WFD database will be updated every 6th year.
Located in Data and maps Interactive maps
GIS Map Application Nitrate in rivers
The map shows the mean annual concentrations of Nitrate (NO3) as mg/L NO3-N measured at WISE SoE river monitoring stations during 2011. For most countries the values are based on measurements over the whole year, whereas some countries have samples only from the growing season (due to ice cover in winter). The purpose of the map is to provide an overview of the mean annual concentrations of the nitrates in rivers across Europe and to enable viewer to make comparisons of the values in European countries, River basin districts or in individual monitoring sites. High or increased (compared to reference condition) concentration of nitrate represents a risk to normal functioning of downstream coastal ecosystems, causing eutrophication* with potentially excessive growth of algae or other aquatic vegetation, oxygen deficiency in the bottom waters and reduced biodiversity. High concentration of nitrates also represents a health risk if the water is used for drinking water. The WHO guideline for drinking water is < 10 mg/L NO3-N (equivalent to ca. 50 mg/L NO3). For additional information on nutrients in water see the Water quality and pollution by nutrients section of the WISE website. Nitrates in excess can give rise to eutrophication in down-stream coastal waters by stimulating excessive growth of algae and other aquatic plants when nitrogen is the limiting factor for growth.
Located in Data and maps Interactive maps
GIS Map Application WISE SoE: Orthophosphate in rivers
This map shows the mean annual concentrations of phosphate (orthophosphate, OP) as mg/L PO4-P measured at Eionet-Water River monitoring stations during 2011. All data are annual means. For most countries these are based on measurements over the whole year, whereas some countries have samples only from the growing season (due to ice cover in winter). The purpose of the map is to provide an overview of the annual concentrations of the orthophosphates in rivers across Europe and to enable viewer to make comparisons of the values in European countries, River basin districts or in individual monitoring sites. High or increased (compared to reference condition) concentration of Phosphate 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.
Located in Data and maps Interactive maps
European Environment Agency (EEA)
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Phone: +45 3336 7100