Nitrate concentrations in rivers between 1992 and 2009 in different sea regions of Europe.
Regions: (the number of river monitoring stations included per sea region is given in parentheses)
Arctic Ocean (13)
Baltic Sea (395)
Black Sea (365)
Celtic Seas, Bay of Biscay, Iberian Coast (263)
Greater North Sea (420)
Mediterranean Sea (212)
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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