The Rhine Substances List is updated every three years and specifies the substances to be measured annually at the international main monitoring stations as part of the Rhine Monitoring Programme for Chemistry. The Rhine Substances List 2027–2029 is based on the evaluation of the review list for the Rhine Substances List 2024–2026 (ICPR technical report no. 296) and the revision of the Rhine Monitoring Programme Chemistry (ICPR technical report no. 318).
The report is only available in German, French and Dutch.