Procedure of mapping groundwater vulnerability to pesticides

A test application of a procedure for groundwater vulnerability assessment to pesticides leaching, based on specific parameters and potential contamination indices, is presented. Transit time, leaching quantity and expected contaminant concentration in groundwater are considered in the development of the calculation procedure. Raster maps showing the areal distribution of parameters and indices are produced by means of GIS facilities for a sample area south of Modena (Northern Italy)