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Daviz Visualization Changes in water quality variables during the last two decades
Located in Data and maps Data visualisations
Indicator Assessment chemical/x-pdb Chemical status (WFD 002) - Assessment DRAFT created Apr 2013
This indicator summarises the results from the Water Framework (WFD) River  Basin Management Plans (RBMP) on chemical status of groundwater and surface waters. The results should be interpreted cautiously, since chemical monitoring as reported in the first RBMPs was incomplete, and information is not always comparable between Member States.  The results from the first showed: Poor chemical status for groundwater, by area, is about 25 % across Europe. A total of 16 Member States have more than 10 % of groundwater bodies in poor chemical status; this figure exceeds 50 % in four Member States. Excessive levels of nitrate are the most frequent cause of poor groundwater status across much of Europe.   Poor chemical status for rivers, lakes, and transitional and coastal waters does not exceed 10 %, aggregated across Europe as a whole. Notably, the chemical status of many of Europe’s surface waters remains unknown, ranging between one third of lakes and more than half of transitional waters. A total of 10 Member States report poor chemical status in more than 20 % of rivers and lakes with known chemical status, whilst this figure rises to above 40 % in five Member States. A total of 10 Member States report poor chemical status in more than 20 % of rivers and lakes with known chemical status, whilst this figure rises to above 40 % in five Member States.   Polycyclic aromatic hydrocarbons (PAHs) are a widespread cause of poor status in rivers. Heavy metals are also a significant contributor to poor status in rivers and lakes, with levels of mercury in Swedish freshwater biota causing 100 % failure to reach good chemical status. Industrial chemicals such as the plasticiser di-(2-ethylhexyl) phthalate (DEHP) and pesticides also constitute widespread causes of poor chemical status in rivers.  Six Member States report poor chemical status in transitional waters to be more than 50 % of the water bodies with known chemical status. PAHs, the antifouling biocide tributyltin (TBT) and heavy metals are the most common culprits.  Six Member States report all their coastal waters as having good chemical status, although in five others, poor chemical status exceeds 90 % of those water bodies with a known chemical status. A variety of pollutant groups contribute to poor status in coastal waters, reflecting a diverse range of sources.
Located in Data and maps Indicators Chemical status
Figure D source code Chemical status of rivers and lakes per RBD — percentage of water bodies not achieving good chemical status
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Located in Data and maps Maps and graphs
Figure 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
Figure Comparison of water quality in rivers in the Czech Republic, 1991–1992 and 2010–2011
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Located in Data and maps Maps and graphs
Figure Concentrations of nitrate and orthophosphate in rivers and total phosphorus in lakes in the period 1992–2007
Total number of stations in parenthesis. Concentrations are expressed as weighted means of annual mean concentrations for rivers and lakes. Only stations with time series of seven years or more are included.
Located in Data and maps Maps and graphs
Figure Concentrations of total ammonium, BOD, nitrate, and orthophos-phates in European rivers between 1992 and 2001
Located in Data and maps Maps and graphs
Figure Concentrations of total ammonium, biochemical oxygen demand, nitrate and orthophosphate in European rivers between 1992 and 2002
Concentrations are average of the annual average concentrations per year
Located in Data and maps Maps and graphs
Figure Conservation status of habitat types of European Union interest in lake and river ecosystems
Statistics by region on the left, overall statistics on the right.
Located in Data and maps Maps and graphs
Figure D source code Conservation status of river and lake habitat types and species, and conservation status of coastal and transitional waters habitat types of European interest
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Located in Data and maps Maps and graphs
European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Denmark
Phone: +45 3336 7100