Water statistics (Eurostat)

External Data Spec Published 19 Apr 2013
Population connected to waste water collection and treatment systems. Yearly data on  waste water treatment (connection rates of resident population to  waste water treatment and treatment capacities of waste water treatment  plants), collected biennially by means of the OECD/Eurostat Joint  Questionnaire - Inland Waters. Data aggregation: national territories.
information.png Provider:
Statistical Office of the European Union (Eurostat)
information.png Dataset URL:
http://ec.europa.eu/eurostat/web/environment/water/database
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information.png Other comments:

http://appsso.eurostat.ec.europa.eu/nui/show.do?dataset=env_watq4&lang=en

Related content

Indicators using this data

Use of freshwater resources The WEI+ provides a measure of the total water use as a percentage of the renewable freshwater resources for a given territory and time scale. The WEI+ is an advanced and geo-referenced implementation of the WEI. It quantifies how much water is monthly or seasonally abstracted and how much water is returned after use to the environment via basins. The difference between water abstraction and return is regarded as water use.
Emission intensity of the domestic sector in Europe This indicator is used to illustrate the emission intensity of the domestic sector (household plus services), expressed as the amount of discharged pollutant from wastewater treatment/or discharged without treatment per inhabitant per year. Furthermore, the indicator shows a decoupling of the emission of nutrients (nitrogen and phosphorus) and population growth across Europe. The values of change (increase/or decrease) in discharged load between 1990 and 2009 (expressed in percentages, where values in 1990 = 100%) are plotted against the values of change in population growth. Absolute decoupling occurs when the environmentally relevant variable is stable or decreasing while the driving force is growing. Relative decoupling occurs when the growth rate of the emission is positive, but less than the population growth rate.
Urban waste water treatment The indicator on urban waste water treatment, CSI 024, collects data on the percentage of the population connected to sewage collection systems, as well as on the prevalence of primary, secondary and tertiary urban waste water treatment plants. The amount of urban waste water treated is expressed as population equivalents (p.e.). The indicator illustrates: the development of urban waste water collection and treatment in Europe since the 1970s; the development of more stringent urban waste water treatment practices; the level of urban waste water treatment in 'big cities' (agglomerations of > 150 000 p.e.) in the EU.
Use of freshwater resources The water exploitation index (WEI) is the mean annual total abstraction of freshwater divided by the mean annual total renewable freshwater resource at the country level, expressed in percentage terms.

Interactive maps produced

Water exploitation index plus (WEI+) for river basin districts (1990-2015) This interactive map gives a European overview of water stress conditions. The information presented may deviate from that available in the EEA member countries and cooperating countries, particularly for those countries where data availability is insufficient in the WISE SoE – Water quantity database (WISE 3). Data on hydro-climatic variables was aggregated from a daily to a monthly scale. Water abstraction data was taken from WISE 3 (annual resolution at the national scale), although there are large gaps in the time series. Therefore, intensive gap filling was performed on water abstraction data and proxies were used to disaggregate the data from the national to the sub-basin scale. Information on water use was mainly modelled on the UWWTP capacities, the E-PRTR database and the Eurostat Population change dataset (online data code [demo_gind]) among others. See the methodology chapter for further explanation of gap filling, and spatial and temporal disaggregation, and the data uncertainties chapter for current data availability. This interactive map allows users to explore changes over time in water abstraction by source, water use by sector and water stress level at sub-basin or river basin scale. The WEI+ has been estimated as the quarterly average per river basin district, for the years 1990-2015, as defined in the European catchments and rivers network system (ECRINS). The ECRINS delineation of river basin districts differs slightly from that defined by Member States under the Water Framework Directive. The Ecrins delineation is used instead of WFD because it contains geo-spatial information on Europe’s hydrographical systems with full topological information enabling flow estimation between upstream and downstream basins, as well as integration of economic data collected at NUTS or country level. In addition to using e WISE SoE – Water quantity database, a comprehensive manual data collection was performed by accessing all open sources (Eurostat, OECD, FAO) including national statistical offices of the countries. This was done because of the temporal and spatial gaps in the data on water abstraction. Moreover, a large part of the stream flow data from LISFLOOD has also been substantially updated by the Directorate-General Joint Research Centre. Similarly, a comprehensive update with climatic parameters has been performed by the EEA based on the E-OBS dataset. Therefore, the time series of the WEI+ presented in the current version might be slightly different for some basins compared with the previous version.
Water exploitation index plus (WEI+) for river basin districts (2002-2014) This interactive map allows users to explore changes over time in water abstraction by source and water use by sector at sub-basin or river basin scale. The WEI+ has been calculated as the quarterly average per river basin district, for the years 2002-2014, as defined in the European catchments and rivers network system (ECRINS). The ECRINS delineation of river basin districts differs from that defined by Member States under the Water Framework Directive, particularly for transboundary river basin districts.
Water exploitation index for river basin districts This interactive map allows users to explore changes over time in water abstraction by source and water use by sector at sub-basin or river basin scale. The water exploitation index has been calculated as the quarterly average per river basin district, for the years 2002-2012, as defined in the European catchments and rivers network system (ECRINS). The ECRINS delineation of river basin districts differs from that defined by Member States under the Water Framework Directive, particularly for transboundary river basin districts.

Produced figures

Water exploitation index plus for river basin districts The water exploitation index plus has been calculated as a multi-annual average per river basin district, for the years 2002-2012, as defined in ECRINS. The ECRINS delineation of river basin districts differs from those defined by Member States under the Water Framework Directive, particularly for transboundary river basin districts. Click on the "downloads and more info" button below to see the dynamic map with time slider, which provides information on water abstraction by source and water use by sector at sub-basin or river basin scale.
Nitrogen emission intensity of domestic sector in 1990, 2000–2009 (EU20 + Switzerland, Norway and Turkey) The chart displays changes in nitrogen emission intensity of domestic sector in 1990, 2000 and 2009. Nitrogen emission intensity is expressed as kilogram of nitrogen discharged in water per inhabitant and year. Two sets of values are displayed for emission intensity for 2009. (1) Values calculated on the basis of default population equivalents and treatment efficiencies and (2) values calculated as sum of emission loads reported voluntarily under the UWWTD and calculated load generated by population not connected to waste water treatment.
Decoupling of nutrient emissions from urban waste water treatment plants and population growth between 1990 and 2009 ( EU15 + Switzerland, Norway, Iceland and Turkey) The chart displays changes in nutrient emissions in water from urban waste water treatment plants (and collecting systems without treatment), plotted against changes in population growth in Europe between 1990 and 2009. Changes are expressed in %, where values for 1990=100 %.
Phosphorus emission intensity of domestic sector in period 1990, 2000-2009 in 23 European countries (EU20 + Switzerland, Norway and Turkey) The chart displays changes in phosphorus emission intensity of domestic sector in 1990, 2000 and 2009. Phosphorus emission intensity is expressed as kilogram of phosphorus discharged in water per inhabitant and year. Two sets of values are displayed for emission intensity for 2009. (1) Values calculated on the basis of default population equivalents and treatment efficiencies and (2) values calculated as sum of emission load reported voluntarily under the UWWTD and calculated load generated by population not connected to waste water treatment.

Visualisations produced

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For references, please go to https://www.eea.europa.eu/data-and-maps/data/external/population-connected-to-wastewater-collection or scan the QR code.

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