ICP Waters

The International Cooperative Programme on Assessment and Monitoring of the Effects of Air Pollution on Rivers and Lakes (ICP Waters) was established in 1985 with the specific objective of assessing the degree to which atmospheric pollution affects surface water chemistry and biology, particularly with regard to acidification, heavy metals (mercury in particular), nitrogen, and persistent organic pollutants (POPs). It also takes into account confounding factors such as climate change and land-use.

Collecting monitoring data according to the ICP Waters manual is a key function of the ICP Waters programme. ICP Waters conducts regular data calls and holds a water chemistry database with data from more than 500 sites in more than twenty countries. Biological data are also collected, and the ICP Waters has an extensive invertebrate database.

The ICP Waters programme is led by the Norwegian Institute for Water Research (NIVA), with active participation of more than 20 countries across Europe and North America. The programme is financed by the Norwegian Environment Agency and UNECE.

For more information, please visit the website of the Programme Centre.