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Environment in the European Union 1995
Uploaded on Saturday 25 Feb 2012
Trends in groundwater nitrate concentrations
Philippe Rekacewicz, UNEP/GRID-Arendal
The graph shows the development of Nitrate concentration in groundwater from 1980 to 1995 in France, Britain and Denmark combined. Nitrate is a naturally occurring compound and is normal in small amounts, but excess amounts can pollute supplies of groundwater. Nitrate travels through soil contaminated by fertilizers, livestock waste and septic systems, carried by rain or irrigation water into groundwater supplies.