Statistics Explained

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

National proportion of groundwater bodies 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 Groundwater: http://www.eea.europa.eu/data-and-maps/data/waterbase-groundwater-7