Establishment of a basis for administrative use of PestSurf

With the purpose of gaining experience with the PestSurf system for evaluation of pesticide load in surface water, 56 simulations were carried out with 12 pesticides. The simulations were compared to the results of the presently used evaluation method and 42 FOCUS surface water simulations. Typical patterns in the results were discussed and recommendations concerning which stretches to include in an analysis are made.