Nitrate concentrations in rivers between 1992 and 2008 in different sea regions of Europe.
Number of rivers stations per region is given in paranthesis:
Atlantic Ocean (392), Baltic Sea (480), Black Sea (374), Mediterranean Sea (286), North Sea (486)
For references, please go to www.eea.europa.eu/soer or scan the QR code.
This briefing is part of the EEA's report The European Environment - State and Outlook 2015. The EEA is an official agency of the EU, tasked with providing information on Europe's environment.
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