MAPPE implements spatially distributed fate and transport models for Europe, directly with geographic information system (GIS) functions.
The tool is ready for use in the form of an ArcGIS extension (see contacts below). Behind the model, however, is rather a method than a specific tool, which can be implemented in any geographic information system providing grid analysis functionalities. The method was tested with reference to a few chemicals, including PCBs, dioxins/furans, lindane, PFOS/PFOA and currently used pesticides. A paper has been prepared  concerning the most extensive test of the model, together with a description of the model itself, and represents at present the most complete reference on the topic together with two public reports from the NoMiracle project [2, 3]. Further details on the spatial data sets used for calculations are in , while  provides a review of spatially explicit models, placing into context the conceptual development of GIS-based modelling, and providing a more rigorous mathematical formulation of the approach. A reference manual is under preparation and will be issued at the end of 2009.