# Description At the hydrological monitoring station Rhein - Schmitter aggregated samples were collected  and analysed in an approximately weekly rhythm in 1972 and 1973.
 # Aim and Monitoring Program Based on the program of International Commission for the Protection of the Rhine (IKSR) to analyse the input of nutrients from tributary waters into lake Bodensee, the hydrological monitoring station Rhein - Schmitter was equipped for continious water sampling, measuring and data recording. The  samples  were taken in a weekly rhythm and analysed at EAWAG on components of nitrogen and phosphor proportional to the discharge. At high water discharge (Q > 330 m3/sec) samples were collected in a lower cadence into a separate collector (samples may therefore overlap in collection time). Averages of water temperature, pH or conductivity originate from the continuous recording. The data were published in the Hydrological Yearbook of Switzerland. # Origin of Data Data publication in the Hydrological Yearbook of Switzerland FOEN.