Nitrate or total oxidised nitrogen concentrations in different sized European rivers

Figure Created 12 Nov 2009 Published 12 Nov 2009 Last modified 29 Nov 2012

Median of measured annual average concentrations

https://www.eea.europa.eu/data-and-maps/figures/nitrate-or-total-oxidised-nitrogen-concentrations-in-different-sized-european-rivers/fig11_1/image_large

Download

Original file image/gif (25.59 KB)

Metadata

Last upload:

01 Jan 2002

Rights:

EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright).

Figure type:

Graph

Additional information

Total oxidised nitrogen (TON) is the sum of nitrate and nitrite. Some countries monitor TON instead of nitrate. Nitrite levels are often much lower than nitrate, and therefore for the purposes of this assessment, nitrate and TON are considered to be approximately equivalent.