Statistics Explained

File:National proportion of river monitoring stations in various trend categories for nitrate concentration (%), (1992-2009).png

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National proportion of river monitoring stations in various trend categories for nitrate concentration (%), (1992-2009).

Graph created with data from 1992 - 2009.

Data extracted in November 2012. Most recent data available at:

EEA website WISE-SoE Rivers at: http://www.eea.europa.eu/data-and-maps/data/waterbase-rivers-8