The Norwegian river monitoring programme 2021: Water quality status and trends

In the Norwegian River Monitoring Programme (in Norwegian: Elveovervåkingsprogrammet) 20 rivers along the Norwegian coast are monitored for physical and chemical parameters.

This report presents the current status (2021) and long-term (1990-2021) trends in suspended particles, organic matter, nutrients, and metals.

EU Water Framework Directive priority substances and river basin-specific pollutants (trace metals and organic pollutants) from five rivers are compared with annual average
environmental quality standards (AA-EQS).

The report also presents light absorbance indices for characterisation of
dissolved organic matter (DOM) quality in the rivers, and high-frequency measurements of water temperature, pH, conductivity, turbidity and fluorescent DOM (fDOM) in two rivers; Storelva (southern Norway) and Målselva (northern Norway).