File:Groundwater nitrate concentration classes (mg NO3 per l) and proportion of groundwater monitoring stations in each class per country (%), 2009, EU-27, EFTA, Candidate and Potential Candidate Countries .png

Groundwater nitrate concentration classes (mg NO3 per l) and proportion of groundwater monitoring stations in each class per country (%), 2009, EU-27, EFTA, Candidate and Potential Candidate Countries

Graph created with data from 2009.

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

EEA website WISE-SoE Groundwater:  http://www.eea.europa.eu/data-and-maps/data/waterbase-groundwater-7