Department Surface Waters - Research and Management
NAWA-Fracht: National river monitoring
The “National monitoring programme for substance load in Swiss watercourses” (NAWA-Fracht, formerly known as NADUF), monitors the chemical-physical state of Swiss rivers.
Flux-proportional samples are collected weekly or bi-weekly at selected stations on Swiss rivers, along with discharge and in-situ continuous data.
The NAWA-Fracht program was initiated in 1972, and therefore allows detection of intermediate-term and long-term changes in chemical loads. The NAWA-Fracht network also serves as a basic data and sampling facility to evaluate the effectiveness of water protection measures and to provide supporting data for various scientific projects. The program is a cooperative project between Eawag, the Federal Office of the Environment (FOEN), the Federal Institute of Metrology (METASA), WSL, and the Office of Environment and Energy of Canton Basel-Stadt (AUE). The quality-controlled data are made available through ERIC, Eawag’s open research data repository.
