Transitional (estuarine) and coastal waters

The Environmental Protection Agency undertakes surveys of the water quality of estuaries and near shore coastal waters.

In general, the water quality status of these waters is considered to be good. Some estuaries, mainly those in the south and east, however, are over-enriched with nutrients and have been classed as eutrophic.

In the latest Water Quality in Ireland  report, which covers the period 2007-2009, a total of 89 transitional and coastal waters were assessed of which nine estuaries or 10.1 per cent of those waters surveyed were classified as eutrophic.