Water quality in Irish rivers and lakes remains ‘unsatisfactory’ (opens original article in a new tab)

Ireland's water quality in rivers, lakes, and coastal areas remains 'unsatisfactory' with little improvement reported in 2025, as nutrient pollution from agriculture and wastewater continues to hinder progress.

• Ireland's water quality in rivers, lakes, and coastal areas remains 'unsatisfactory' with little improvement reported in 2025
• High-status rivers show a 25% decline since 2012, with only one out of 86 improving in quality
• Nutrient pollution from agriculture and wastewater is the main challenge for water quality improvements
• 22% of groundwater sites and 20% of coastal waters have unsatisfactory nitrogen levels