Modelling the Fate of Pesticide Transformation Products From Plot to Catchment Scale—State of Knowledge and Future Challenges

Transformation products (TP) of pesticides are found everywhere in the aquatic environment. Their dynamic formation and subsequent transport from agricultural fields to adjacent water bodies can be estimated by using environmental fate models, which is done registration process for plant protection European Union. In this study, peer-reviewed applications such model complexity their structure documented analysed. total, 20 publications 10 models – eight leaching (GLEAMS, MACRO, RZWQM2, PEARL, PRZM, Pelmo, LEACHM, HYDRUS 1-D) two catchment scale (Zin-AgriTra, FRM) were identified. The reviewed greatly differ regarding rate pathways TPs.The major reason given failing reproduce sampled TP concentrations case studies was an erroneous substance transport, especially missing preferential flow simulation soil. However, contribution processes uncertainty not analysed at all most studies. By comparing existing state knowledge on requirements assessment, following recommendations drawn: i) It suggested that should updated reflect current research, more complex transformation schemes different TPs compartments, included models. ii) Even though there pesticide parent compound with a temporal resolution one day, none these able simulate fate. Such would enable scientists authorities estimate larger or regional scale. iii) To get over assessment huge number formed environment, integration Quantitative Structure Properties Relationship predicting characteristics, pathway prediction suggested. This allow largely automated comprehensive its regulatory purposes.