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Nitrate in rivers

The average river nitrate concentration in Europe decreased steadily over the period 1992-2009 but has levelled off since then. The shorter time series is parallel to the longer one, but the concentration level is lower from 2007 onwards. Agriculture remains the main contributor to nitrogen pollution, but the EU Nitrates Directive and national measures have contributed lower concentrations. However, the apparent stabilisation in recent years may call for further measures to be taken.

See chart for nitrate in groundwater and rivers here.