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For rivers, there are 44 000 water bodies (58% of the total number), or 606 000 km (65% of total river length) reported to be in less than good ecological status or potential. The main causes for the poor ecological status/potential are emissions from diffuse and point sources coming from agricultural pollution, from urban waste water and industrial emissions, causing nutrient and organic enrichment, as well as hydromorphological changes causing altered habitats.

Figure 4.1 Ecological status or potential, pressures and impacts of classified river water bodies in different member states sorted by proportion of good or better ecological status or potential.  The figure shows the percentage of total number of river classified water bodies in different status classes (left panel), with and without pressures reported (middle panel),  with and without impacts (right panel).

Notes: The number of classified river water bodies is given in brackets for each member state. Empty rows in the pressures and impacts plots mean that no data on pressures and/or impacts are reported from those member states. These member states are also excluded from the overall EU results. Swedish surface water bodies where the pressure or impact reporting is considered only to be related to airborne mercury contamination are defined as not affected (see text). See appendix for further details.

Source: Based on data available in WISE-WFD database primo February 2012,  -  country results on ecological status, pressures and impacts are available here http://wfd.atkins.dk/report/WFD_aggregation_reports/swb_status   &

http://wfd.atkins.dk/report/WFD_aggregation_reports/SWB_pressure_status  & http://wfd.atkins.dk/report/WFD_aggregation_reports/SWB_impact_status