Nitrate concentrations in rivers between 1992 and 2011 in different sea regions of Europe.
Arctic Ocean (13)
Baltic Sea (373)
Black Sea (143)
Celtic Seas, Bay of Biscay, Iberian Coast (169)
Greater North Sea (397)
Mediterranean Sea (132)
For references, please go to www.eea.europa.eu/soer or scan the QR code.
PDF generated on 01 Oct 2016, 01:14 AM