Early insights indicator report: Nitrogen concentrations in selected major rivers, January-June 2025
Summary: The purpose of this report is to provide an early insight into nitrogen concentrations in major rivers in Ireland, in advance of the more comprehensive annual water quality assessments.
The early insights indicator reports were developed to provide an update on nitrogen concentrations in the major rivers of Ireland on a six-monthly basis. There have been two previous iterations, covering the periods January - June 2024 and January - December 2024.
This update provides nitrogen concentration data from the first six-months of 2025 at 20 representative river monitoring stations, located at the most downstream available sites on the major rivers of Ireland.