Emission inventories of selected substances in the Rhine were already carried out in 1985 (ICPR technical report no. 10), 1992 (ICPR technical report no. 55), 1996 (ICPR technical report no. 110), 2000 (ICPR technical report no. 134) and 2010 (ICPR technical report no. 233) (Annex I). The results of the 2000 and 2010 inventories were also used for the preparation of the internationally coordinated management plan of the Rhine for the periods 2009-2015 and 2016-2021 for the Rhine catchment.
In the present inventory, as in 2010, the Rhine catchment is defined as an international river basin district according to the Water Framework Directive. The period under review covers the year 2016.